0_GTzan-Create-Folds.ipynb

{
 "cells": [
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "# Create 3-Folds without Artist Filter\n",
    "# GTzan Dataset\n",
    "\n",
    "http://marsyasweb.appspot.com/download/data_sets/\n",
    "\n",
    "- The dataset consists of 1000 audio tracks each 30 seconds long.\n",
    "\n",
    "- It contains 10 genres, each represented by 100 tracks.\n",
    "\n",
    "- The tracks are all 22050Hz Mono 16-bit audio files in .wav format.\n",
    "\n",
    "##### 8 May 2019\n",
    "#### Alessandro L. Koerich\n",
    "#### Adapted by Karl M. Koerich"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "import numpy as np\n",
    "import os\n",
    "import soundfile as sf\n",
    "import math\n",
    "\n",
    "import matplotlib.pyplot as plt\n",
    "import pylab as py\n",
    "from scipy import fftpack\n",
    "from scipy import signal\n",
    "from pylab import *\n",
    "import scipy.io.wavfile\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": [
    "# Path to source files\n",
    "path2='../genres'"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## List all wav files"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "(1,)\n",
      "(100,)\n",
      "(101,)\n",
      "(100,)\n",
      "(100,)\n",
      "(100,)\n",
      "(100,)\n",
      "(100,)\n",
      "(100,)\n",
      "(100,)\n",
      "(100,)\n",
      "Files processed: 1000\n"
     ]
    }
   ],
   "source": [
    "# List of all wav files\n",
    "file_list = []\n",
    "i = 0 \n",
    "for path, subdirs, files in os.walk(path2):\n",
    "    print(shape(files))\n",
    "    for name in files:\n",
    "        if (name[-2:] != 'au'):\n",
    "            continue\n",
    "        file_list.append(os.path.join(path, name))\n",
    "        i += 1\n",
    "print(\"Files processed: \"+str(i) )"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Get the label (genre) from directory name"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
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    }
   ],
   "source": [
    "# Get the label (genre) from directory name and create a list of genres\n",
    "\n",
    "genre_list  = list()\n",
    "\n",
    "track_id = 0\n",
    "\n",
    "for file in file_list:\n",
    "    \n",
    "    genre = str(file.split('/')[2])\n",
    "    print(genre)\n",
    "    genre_list.append(genre)\n",
    "    track_id += 1\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "((1000,), (1000,))"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "shape(genre_list), shape(file_list)"
   ]
  },
  {
   "cell_type": "markdown",
   "metadata": {},
   "source": [
    "## Create 3 data folds and directories (fold1, fold2, fold3) and write the wav files into them"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "StratifiedKFold(n_splits=3, random_state=7, shuffle=True)\n",
      "\n",
      "TRAIN: [  0   1   3   4   6   7   8   9  10  14  16  19  21  23  24  25  28  29\n",
      "  31  32  33  34  35  36  38  39  41  42  43  44  46  47  48  53  55  56\n",
      "  57  59  60  61  62  63  64  67  68  69  70  72  73  75  76  77  79  80\n",
      "  81  82  83  84  87  89  90  92  94  95  98  99 100 101 103 104 106 107\n",
      " 108 109 110 114 116 119 121 123 124 125 128 129 131 132 133 134 135 136\n",
      " 138 139 141 142 143 144 146 147 148 153 155 156 157 159 160 161 162 163\n",
      " 164 167 168 169 170 172 173 175 176 177 179 180 181 182 183 184 187 189\n",
      " 190 192 194 195 198 199 200 201 203 204 206 207 208 209 210 214 216 219\n",
      " 221 223 224 225 228 229 231 232 233 234 235 236 238 239 241 242 243 244\n",
      " 246 247 248 253 255 256 257 259 260 261 262 263 264 267 268 269 270 272\n",
      " 273 275 276 277 279 280 281 282 283 284 287 289 290 292 294 295 298 299\n",
      " 300 301 303 304 306 307 308 309 310 314 316 319 321 323 324 325 328 329\n",
      " 331 332 333 334 335 336 338 339 341 342 343 344 346 347 348 353 355 356\n",
      " 357 359 360 361 362 363 364 367 368 369 370 372 373 375 376 377 379 380\n",
      " 381 382 383 384 387 389 390 392 394 395 398 399 400 401 403 404 406 407\n",
      " 408 409 410 414 416 419 421 423 424 425 428 429 431 432 433 434 435 436\n",
      " 438 439 441 442 443 444 446 447 448 453 455 456 457 459 460 461 462 463\n",
      " 464 467 468 469 470 472 473 475 476 477 479 480 481 482 483 484 487 489\n",
      " 490 492 494 495 498 499 500 501 503 504 506 507 508 509 510 514 516 519\n",
      " 521 523 524 525 528 529 531 532 533 534 535 536 538 539 541 542 543 544\n",
      " 546 547 548 553 555 556 557 559 560 561 562 563 564 567 568 569 570 572\n",
      " 573 575 576 577 579 580 581 582 583 584 587 589 590 592 594 595 598 599\n",
      " 600 601 603 604 606 607 608 609 610 614 616 619 621 623 624 625 628 629\n",
      " 631 632 633 634 635 636 638 639 641 642 643 644 646 647 648 653 655 656\n",
      " 657 659 660 661 662 663 664 667 668 669 670 672 673 675 676 677 679 680\n",
      " 681 682 683 684 687 689 690 692 694 695 698 699 700 701 703 704 706 707\n",
      " 708 709 710 714 716 719 721 723 724 725 728 729 731 732 733 734 735 736\n",
      " 738 739 741 742 743 744 746 747 748 753 755 756 757 759 760 761 762 763\n",
      " 764 767 768 769 770 772 773 775 776 777 779 780 781 782 783 784 787 789\n",
      " 790 792 794 795 798 799 800 801 803 804 806 807 808 809 810 814 816 819\n",
      " 821 823 824 825 828 829 831 832 833 834 835 836 838 839 841 842 843 844\n",
      " 846 847 848 853 855 856 857 859 860 861 862 863 864 867 868 869 870 872\n",
      " 873 875 876 877 879 880 881 882 883 884 887 889 890 892 894 895 898 899\n",
      " 900 901 903 904 906 907 908 909 910 914 916 919 921 923 924 925 928 929\n",
      " 931 932 933 934 935 936 938 939 941 942 943 944 946 947 948 953 955 956\n",
      " 957 959 960 961 962 963 964 967 968 969 970 972 973 975 976 977 979 980\n",
      " 981 982 983 984 987 989 990 992 994 995 998 999] \n",
      "\n",
      "TEST: [  2   5  11  12  13  15  17  18  20  22  26  27  30  37  40  45  49  50\n",
      "  51  52  54  58  65  66  71  74  78  85  86  88  91  93  96  97 102 105\n",
      " 111 112 113 115 117 118 120 122 126 127 130 137 140 145 149 150 151 152\n",
      " 154 158 165 166 171 174 178 185 186 188 191 193 196 197 202 205 211 212\n",
      " 213 215 217 218 220 222 226 227 230 237 240 245 249 250 251 252 254 258\n",
      " 265 266 271 274 278 285 286 288 291 293 296 297 302 305 311 312 313 315\n",
      " 317 318 320 322 326 327 330 337 340 345 349 350 351 352 354 358 365 366\n",
      " 371 374 378 385 386 388 391 393 396 397 402 405 411 412 413 415 417 418\n",
      " 420 422 426 427 430 437 440 445 449 450 451 452 454 458 465 466 471 474\n",
      " 478 485 486 488 491 493 496 497 502 505 511 512 513 515 517 518 520 522\n",
      " 526 527 530 537 540 545 549 550 551 552 554 558 565 566 571 574 578 585\n",
      " 586 588 591 593 596 597 602 605 611 612 613 615 617 618 620 622 626 627\n",
      " 630 637 640 645 649 650 651 652 654 658 665 666 671 674 678 685 686 688\n",
      " 691 693 696 697 702 705 711 712 713 715 717 718 720 722 726 727 730 737\n",
      " 740 745 749 750 751 752 754 758 765 766 771 774 778 785 786 788 791 793\n",
      " 796 797 802 805 811 812 813 815 817 818 820 822 826 827 830 837 840 845\n",
      " 849 850 851 852 854 858 865 866 871 874 878 885 886 888 891 893 896 897\n",
      " 902 905 911 912 913 915 917 918 920 922 926 927 930 937 940 945 949 950\n",
      " 951 952 954 958 965 966 971 974 978 985 986 988 991 993 996 997]\n",
      "\n",
      "TRAIN: (660,) TEST: (340,)\n",
      "gtzan/fold1/disco/disco.00012.au\n",
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    {
     "name": "stdout",
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      "gtzan/fold1/hiphop/hiphop.00062.au\n",
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      "gtzan/fold1/hiphop/hiphop.00074.au\n",
      "gtzan/fold1/hiphop/hiphop.00090.au\n",
      "gtzan/fold1/hiphop/hiphop.00087.au\n",
      "gtzan/fold1/hiphop/hiphop.00091.au\n",
      "gtzan/fold1/hiphop/hiphop.00049.au\n",
      "gtzan/fold1/hiphop/hiphop.00093.au\n",
      "gtzan/fold1/hiphop/hiphop.00003.au\n",
      "gtzan/fold1/hiphop/hiphop.00084.au\n",
      "gtzan/fold1/hiphop/hiphop.00002.au\n",
      "gtzan/fold1/hiphop/hiphop.00015.au\n",
      "gtzan/fold1/reggae/reggae.00087.au\n",
      "gtzan/fold1/reggae/reggae.00067.au\n",
      "gtzan/fold1/reggae/reggae.00039.au\n",
      "gtzan/fold1/reggae/reggae.00091.au\n",
      "gtzan/fold1/reggae/reggae.00086.au\n",
      "gtzan/fold1/reggae/reggae.00001.au\n",
      "gtzan/fold1/reggae/reggae.00084.au\n",
      "gtzan/fold1/reggae/reggae.00003.au\n",
      "gtzan/fold1/reggae/reggae.00093.au\n",
      "gtzan/fold1/reggae/reggae.00065.au\n",
      "gtzan/fold1/reggae/reggae.00085.au\n",
      "gtzan/fold1/reggae/reggae.00072.au\n",
      "gtzan/fold1/reggae/reggae.00061.au\n",
      "gtzan/fold1/reggae/reggae.00007.au\n",
      "gtzan/fold1/reggae/reggae.00077.au\n",
      "gtzan/fold1/reggae/reggae.00062.au\n",
      "gtzan/fold1/reggae/reggae.00082.au\n",
      "gtzan/fold1/reggae/reggae.00083.au\n",
      "gtzan/fold1/reggae/reggae.00074.au\n",
      "gtzan/fold1/reggae/reggae.00004.au\n",
      "gtzan/fold1/reggae/reggae.00063.au\n",
      "gtzan/fold1/reggae/reggae.00045.au\n",
      "gtzan/fold1/reggae/reggae.00089.au\n",
      "gtzan/fold1/reggae/reggae.00021.au\n",
      "gtzan/fold1/reggae/reggae.00018.au\n",
      "gtzan/fold1/reggae/reggae.00037.au\n",
      "gtzan/fold1/reggae/reggae.00033.au\n",
      "gtzan/fold1/reggae/reggae.00032.au\n",
      "gtzan/fold1/reggae/reggae.00040.au\n",
      "gtzan/fold1/reggae/reggae.00098.au\n",
      "gtzan/fold1/reggae/reggae.00008.au\n",
      "gtzan/fold1/reggae/reggae.00056.au\n",
      "gtzan/fold1/reggae/reggae.00079.au\n",
      "gtzan/fold1/reggae/reggae.00099.au\n",
      "gtzan/fold1/jazz/jazz.00022.au\n",
      "gtzan/fold1/jazz/jazz.00023.au\n",
      "gtzan/fold1/jazz/jazz.00046.au\n",
      "gtzan/fold1/jazz/jazz.00051.au\n",
      "gtzan/fold1/jazz/jazz.00021.au\n",
      "gtzan/fold1/jazz/jazz.00088.au\n",
      "gtzan/fold1/jazz/jazz.00050.au\n",
      "gtzan/fold1/jazz/jazz.00047.au\n",
      "gtzan/fold1/jazz/jazz.00037.au\n",
      "gtzan/fold1/jazz/jazz.00054.au\n",
      "gtzan/fold1/jazz/jazz.00042.au\n",
      "gtzan/fold1/jazz/jazz.00032.au\n",
      "gtzan/fold1/jazz/jazz.00027.au\n",
      "gtzan/fold1/jazz/jazz.00031.au\n",
      "gtzan/fold1/jazz/jazz.00009.au\n",
      "gtzan/fold1/jazz/jazz.00038.au\n",
      "gtzan/fold1/jazz/jazz.00000.au\n",
      "gtzan/fold1/jazz/jazz.00087.au\n",
      "gtzan/fold1/jazz/jazz.00070.au\n",
      "gtzan/fold1/jazz/jazz.00071.au\n",
      "gtzan/fold1/jazz/jazz.00001.au\n",
      "gtzan/fold1/jazz/jazz.00039.au\n",
      "gtzan/fold1/jazz/jazz.00003.au\n",
      "gtzan/fold1/jazz/jazz.00002.au\n",
      "gtzan/fold1/jazz/jazz.00015.au\n",
      "gtzan/fold1/jazz/jazz.00076.au\n",
      "gtzan/fold1/jazz/jazz.00061.au\n",
      "gtzan/fold1/jazz/jazz.00077.au\n",
      "gtzan/fold1/jazz/jazz.00028.au\n",
      "gtzan/fold1/jazz/jazz.00005.au\n",
      "gtzan/fold1/jazz/jazz.00062.au\n",
      "gtzan/fold1/jazz/jazz.00012.au\n",
      "gtzan/fold1/jazz/jazz.00063.au\n",
      "gtzan/fold1/jazz/jazz.00074.au\n",
      "gtzan/fold1/pop/pop.00083.au\n",
      "gtzan/fold1/pop/pop.00013.au\n",
      "gtzan/fold1/pop/pop.00005.au\n",
      "gtzan/fold1/pop/pop.00077.au\n",
      "gtzan/fold1/pop/pop.00028.au\n",
      "gtzan/fold1/pop/pop.00007.au\n",
      "gtzan/fold1/pop/pop.00010.au\n",
      "gtzan/fold1/pop/pop.00097.au\n",
      "gtzan/fold1/pop/pop.00061.au\n",
      "gtzan/fold1/pop/pop.00011.au\n",
      "gtzan/fold1/pop/pop.00029.au\n",
      "gtzan/fold1/pop/pop.00076.au\n",
      "gtzan/fold1/pop/pop.00065.au\n",
      "gtzan/fold1/pop/pop.00064.au\n",
      "gtzan/fold1/pop/pop.00091.au\n",
      "gtzan/fold1/pop/pop.00001.au\n",
      "gtzan/fold1/pop/pop.00070.au\n",
      "gtzan/fold1/pop/pop.00000.au\n",
      "gtzan/fold1/pop/pop.00017.au\n",
      "gtzan/fold1/pop/pop.00048.au\n",
      "gtzan/fold1/pop/pop.00038.au\n",
      "gtzan/fold1/pop/pop.00009.au\n",
      "gtzan/fold1/pop/pop.00040.au\n",
      "gtzan/fold1/pop/pop.00057.au\n",
      "gtzan/fold1/pop/pop.00025.au\n",
      "gtzan/fold1/pop/pop.00043.au\n",
      "gtzan/fold1/pop/pop.00037.au\n",
      "gtzan/fold1/pop/pop.00021.au\n",
      "gtzan/fold1/pop/pop.00089.au\n",
      "gtzan/fold1/pop/pop.00019.au\n",
      "gtzan/fold1/pop/pop.00036.au\n",
      "gtzan/fold1/pop/pop.00034.au\n",
      "gtzan/fold1/pop/pop.00052.au\n",
      "gtzan/fold1/pop/pop.00022.au\n",
      "gtzan/fold1/metal/metal.00050.au\n",
      "gtzan/fold1/metal/metal.00068.au\n",
      "gtzan/fold1/metal/metal.00051.au\n",
      "gtzan/fold1/metal/metal.00089.au\n",
      "gtzan/fold1/metal/metal.00021.au\n",
      "gtzan/fold1/metal/metal.00023.au\n",
      "gtzan/fold1/metal/metal.00044.au\n",
      "gtzan/fold1/metal/metal.00045.au\n",
      "gtzan/fold1/metal/metal.00022.au\n",
      "gtzan/fold1/metal/metal.00099.au\n",
      "gtzan/fold1/metal/metal.00009.au\n",
      "gtzan/fold1/metal/metal.00026.au\n",
      "gtzan/fold1/metal/metal.00027.au\n",
      "gtzan/fold1/metal/metal.00032.au\n",
      "gtzan/fold1/metal/metal.00054.au\n",
      "gtzan/fold1/metal/metal.00085.au\n",
      "gtzan/fold1/metal/metal.00015.au\n",
      "gtzan/fold1/metal/metal.00014.au\n",
      "gtzan/fold1/metal/metal.00093.au\n",
      "gtzan/fold1/metal/metal.00064.au\n",
      "gtzan/fold1/metal/metal.00084.au\n",
      "gtzan/fold1/metal/metal.00001.au\n",
      "gtzan/fold1/metal/metal.00038.au\n",
      "gtzan/fold1/metal/metal.00067.au\n",
      "gtzan/fold1/metal/metal.00087.au\n",
      "gtzan/fold1/metal/metal.00094.au\n",
      "gtzan/fold1/metal/metal.00005.au\n",
      "gtzan/fold1/metal/metal.00097.au\n",
      "gtzan/fold1/metal/metal.00010.au\n",
      "gtzan/fold1/metal/metal.00007.au\n",
      "gtzan/fold1/metal/metal.00077.au\n",
      "gtzan/fold1/metal/metal.00029.au\n",
      "gtzan/fold1/metal/metal.00059.au\n",
      "gtzan/fold1/metal/metal.00011.au\n",
      "\n",
      "TRAIN: [  0   2   5   6   7   8  11  12  13  14  15  17  18  19  20  22  23  24\n",
      "  25  26  27  30  37  39  40  42  44  45  47  48  49  50  51  52  53  54\n",
      "  55  56  57  58  60  61  63  64  65  66  67  68  69  71  72  74  75  78\n",
      "  79  82  83  85  86  88  91  92  93  94  96  97  98 100 102 105 106 107\n",
      " 108 111 112 113 114 115 117 118 119 120 122 123 124 125 126 127 130 137\n",
      " 139 140 142 144 145 147 148 149 150 151 152 153 154 155 156 157 158 160\n",
      " 161 163 164 165 166 167 168 169 171 172 174 175 178 179 182 183 185 186\n",
      " 188 191 192 193 194 196 197 198 200 202 205 206 207 208 211 212 213 214\n",
      " 215 217 218 219 220 222 223 224 225 226 227 230 237 239 240 242 244 245\n",
      " 247 248 249 250 251 252 253 254 255 256 257 258 260 261 263 264 265 266\n",
      " 267 268 269 271 272 274 275 278 279 282 283 285 286 288 291 292 293 294\n",
      " 296 297 298 300 302 305 306 307 308 311 312 313 314 315 317 318 319 320\n",
      " 322 323 324 325 326 327 330 337 339 340 342 344 345 347 348 349 350 351\n",
      " 352 353 354 355 356 357 358 360 361 363 364 365 366 367 368 369 371 372\n",
      " 374 375 378 379 382 383 385 386 388 391 392 393 394 396 397 398 400 402\n",
      " 405 406 407 408 411 412 413 414 415 417 418 419 420 422 423 424 425 426\n",
      " 427 430 437 439 440 442 444 445 447 448 449 450 451 452 453 454 455 456\n",
      " 457 458 460 461 463 464 465 466 467 468 469 471 472 474 475 478 479 482\n",
      " 483 485 486 488 491 492 493 494 496 497 498 500 502 505 506 507 508 511\n",
      " 512 513 514 515 517 518 519 520 522 523 524 525 526 527 530 537 539 540\n",
      " 542 544 545 547 548 549 550 551 552 553 554 555 556 557 558 560 561 563\n",
      " 564 565 566 567 568 569 571 572 574 575 578 579 582 583 585 586 588 591\n",
      " 592 593 594 596 597 598 600 602 605 606 607 608 611 612 613 614 615 617\n",
      " 618 619 620 622 623 624 625 626 627 630 637 639 640 642 644 645 647 648\n",
      " 649 650 651 652 653 654 655 656 657 658 660 661 663 664 665 666 667 668\n",
      " 669 671 672 674 675 678 679 682 683 685 686 688 691 692 693 694 696 697\n",
      " 698 700 702 705 706 707 708 711 712 713 714 715 717 718 719 720 722 723\n",
      " 724 725 726 727 730 737 739 740 742 744 745 747 748 749 750 751 752 753\n",
      " 754 755 756 757 758 760 761 763 764 765 766 767 768 769 771 772 774 775\n",
      " 778 779 782 783 785 786 788 791 792 793 794 796 797 798 800 802 805 806\n",
      " 807 808 811 812 813 814 815 817 818 819 820 822 823 824 825 826 827 830\n",
      " 837 839 840 842 844 845 847 848 849 850 851 852 853 854 855 856 857 858\n",
      " 860 861 863 864 865 866 867 868 869 871 872 874 875 878 879 882 883 885\n",
      " 886 888 891 892 893 894 896 897 898 900 902 905 906 907 908 911 912 913\n",
      " 914 915 917 918 919 920 922 923 924 925 926 927 930 937 939 940 942 944\n",
      " 945 947 948 949 950 951 952 953 954 955 956 957 958 960 961 963 964 965\n",
      " 966 967 968 969 971 972 974 975 978 979 982 983 985 986 988 991 992 993\n",
      " 994 996 997 998] \n",
      "\n",
      "TEST: [  1   3   4   9  10  16  21  28  29  31  32  33  34  35  36  38  41  43\n",
      "  46  59  62  70  73  76  77  80  81  84  87  89  90  95  99 101 103 104\n",
      " 109 110 116 121 128 129 131 132 133 134 135 136 138 141 143 146 159 162\n",
      " 170 173 176 177 180 181 184 187 189 190 195 199 201 203 204 209 210 216\n",
      " 221 228 229 231 232 233 234 235 236 238 241 243 246 259 262 270 273 276\n",
      " 277 280 281 284 287 289 290 295 299 301 303 304 309 310 316 321 328 329\n",
      " 331 332 333 334 335 336 338 341 343 346 359 362 370 373 376 377 380 381\n",
      " 384 387 389 390 395 399 401 403 404 409 410 416 421 428 429 431 432 433\n",
      " 434 435 436 438 441 443 446 459 462 470 473 476 477 480 481 484 487 489\n",
      " 490 495 499 501 503 504 509 510 516 521 528 529 531 532 533 534 535 536\n",
      " 538 541 543 546 559 562 570 573 576 577 580 581 584 587 589 590 595 599\n",
      " 601 603 604 609 610 616 621 628 629 631 632 633 634 635 636 638 641 643\n",
      " 646 659 662 670 673 676 677 680 681 684 687 689 690 695 699 701 703 704\n",
      " 709 710 716 721 728 729 731 732 733 734 735 736 738 741 743 746 759 762\n",
      " 770 773 776 777 780 781 784 787 789 790 795 799 801 803 804 809 810 816\n",
      " 821 828 829 831 832 833 834 835 836 838 841 843 846 859 862 870 873 876\n",
      " 877 880 881 884 887 889 890 895 899 901 903 904 909 910 916 921 928 929\n",
      " 931 932 933 934 935 936 938 941 943 946 959 962 970 973 976 977 980 981\n",
      " 984 987 989 990 995 999]\n",
      "\n",
      "TRAIN: (670,) TEST: (330,)\n",
      "gtzan/fold2/disco/disco.00062.au\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
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      "gtzan/fold2/disco/disco.00075.au\n",
      "gtzan/fold2/disco/disco.00013.au\n",
      "gtzan/fold2/disco/disco.00063.au\n",
      "gtzan/fold2/disco/disco.00076.au\n",
      "gtzan/fold2/disco/disco.00058.au\n",
      "gtzan/fold2/disco/disco.00073.au\n",
      "gtzan/fold2/disco/disco.00084.au\n",
      "gtzan/fold2/disco/disco.00014.au\n",
      "gtzan/fold2/disco/disco.00093.au\n",
      "gtzan/fold2/disco/disco.00064.au\n",
      "gtzan/fold2/disco/disco.00065.au\n",
      "gtzan/fold2/disco/disco.00092.au\n",
      "gtzan/fold2/disco/disco.00015.au\n",
      "gtzan/fold2/disco/disco.00085.au\n",
      "gtzan/fold2/disco/disco.00070.au\n",
      "gtzan/fold2/disco/disco.00090.au\n",
      "gtzan/fold2/disco/disco.00017.au\n",
      "gtzan/fold2/disco/disco.00027.au\n",
      "gtzan/fold2/disco/disco.00008.au\n",
      "gtzan/fold2/disco/disco.00033.au\n",
      "gtzan/fold2/disco/disco.00024.au\n",
      "gtzan/fold2/disco/disco.00042.au\n",
      "gtzan/fold2/disco/disco.00032.au\n",
      "gtzan/fold2/disco/disco.00021.au\n",
      "gtzan/fold2/disco/disco.00069.au\n",
      "gtzan/fold2/disco/disco.00046.au\n",
      "gtzan/fold2/disco/disco.00037.au\n",
      "gtzan/fold2/disco/disco.00020.au\n",
      "gtzan/fold2/disco/disco.00088.au\n",
      "gtzan/fold2/disco/disco.00035.au\n",
      "gtzan/fold2/disco/disco.00023.au\n",
      "gtzan/fold2/blues/blues.00018.au\n",
      "gtzan/fold2/blues/blues.00068.au\n",
      "gtzan/fold2/blues/blues.00020.au\n",
      "gtzan/fold2/blues/blues.00021.au\n",
      "gtzan/fold2/blues/blues.00069.au\n",
      "gtzan/fold2/blues/blues.00053.au\n",
      "gtzan/fold2/blues/blues.00035.au\n",
      "gtzan/fold2/blues/blues.00041.au\n",
      "gtzan/fold2/blues/blues.00040.au\n",
      "gtzan/fold2/blues/blues.00098.au\n",
      "gtzan/fold2/blues/blues.00027.au\n",
      "gtzan/fold2/blues/blues.00078.au\n",
      "gtzan/fold2/blues/blues.00057.au\n",
      "gtzan/fold2/blues/blues.00008.au\n",
      "gtzan/fold2/blues/blues.00025.au\n",
      "gtzan/fold2/blues/blues.00042.au\n",
      "gtzan/fold2/blues/blues.00043.au\n",
      "gtzan/fold2/blues/blues.00024.au\n",
      "gtzan/fold2/blues/blues.00015.au\n",
      "gtzan/fold2/blues/blues.00066.au\n",
      "gtzan/fold2/blues/blues.00071.au\n",
      "gtzan/fold2/blues/blues.00017.au\n",
      "gtzan/fold2/blues/blues.00074.au\n",
      "gtzan/fold2/blues/blues.00063.au\n",
      "gtzan/fold2/blues/blues.00094.au\n",
      "gtzan/fold2/blues/blues.00012.au\n",
      "gtzan/fold2/blues/blues.00005.au\n",
      "gtzan/fold2/blues/blues.00007.au\n",
      "gtzan/fold2/blues/blues.00077.au\n",
      "gtzan/fold2/blues/blues.00060.au\n",
      "gtzan/fold2/blues/blues.00097.au\n",
      "gtzan/fold2/blues/blues.00029.au\n",
      "gtzan/fold2/blues/blues.00006.au\n",
      "gtzan/fold2/classical/classical.00024.au\n",
      "gtzan/fold2/classical/classical.00043.au\n",
      "gtzan/fold2/classical/classical.00042.au\n",
      "gtzan/fold2/classical/classical.00027.au\n",
      "gtzan/fold2/classical/classical.00008.au\n",
      "gtzan/fold2/classical/classical.00099.au\n",
      "gtzan/fold2/classical/classical.00079.au\n",
      "gtzan/fold2/classical/classical.00034.au\n",
      "gtzan/fold2/classical/classical.00044.au\n",
      "gtzan/fold2/classical/classical.00069.au\n",
      "gtzan/fold2/classical/classical.00046.au\n",
      "gtzan/fold2/classical/classical.00019.au\n",
      "gtzan/fold2/classical/classical.00051.au\n",
      "gtzan/fold2/classical/classical.00021.au\n",
      "gtzan/fold2/classical/classical.00089.au\n",
      "gtzan/fold2/classical/classical.00020.au\n",
      "gtzan/fold2/classical/classical.00047.au\n",
      "gtzan/fold2/classical/classical.00037.au\n",
      "gtzan/fold2/classical/classical.00029.au\n",
      "gtzan/fold2/classical/classical.00080.au\n",
      "gtzan/fold2/classical/classical.00075.au\n",
      "gtzan/fold2/classical/classical.00083.au\n",
      "gtzan/fold2/classical/classical.00067.au\n",
      "gtzan/fold2/classical/classical.00017.au\n",
      "gtzan/fold2/classical/classical.00000.au\n",
      "gtzan/fold2/classical/classical.00071.au\n",
      "gtzan/fold2/classical/classical.00086.au\n",
      "gtzan/fold2/classical/classical.00049.au\n",
      "gtzan/fold2/classical/classical.00039.au\n",
      "gtzan/fold2/classical/classical.00064.au\n",
      "gtzan/fold2/classical/classical.00093.au\n",
      "gtzan/fold2/classical/classical.00072.au\n",
      "gtzan/fold2/classical/classical.00015.au\n",
      "gtzan/fold2/rock/rock.00072.au\n",
      "gtzan/fold2/rock/rock.00092.au\n",
      "gtzan/fold2/rock/rock.00065.au\n",
      "gtzan/fold2/rock/rock.00084.au\n",
      "gtzan/fold2/rock/rock.00073.au\n",
      "gtzan/fold2/rock/rock.00016.au\n",
      "gtzan/fold2/rock/rock.00038.au\n",
      "gtzan/fold2/rock/rock.00013.au\n",
      "gtzan/fold2/rock/rock.00094.au\n",
      "gtzan/fold2/rock/rock.00074.au\n",
      "gtzan/fold2/rock/rock.00083.au\n",
      "gtzan/fold2/rock/rock.00004.au\n",
      "gtzan/fold2/rock/rock.00005.au\n",
      "gtzan/fold2/rock/rock.00082.au\n",
      "gtzan/fold2/rock/rock.00075.au\n",
      "gtzan/fold2/rock/rock.00095.au\n",
      "gtzan/fold2/rock/rock.00060.au\n",
      "gtzan/fold2/rock/rock.00007.au\n",
      "gtzan/fold2/rock/rock.00028.au\n",
      "gtzan/fold2/rock/rock.00047.au\n",
      "gtzan/fold2/rock/rock.00068.au\n",
      "gtzan/fold2/rock/rock.00053.au\n",
      "gtzan/fold2/rock/rock.00044.au\n",
      "gtzan/fold2/rock/rock.00022.au\n",
      "gtzan/fold2/rock/rock.00052.au\n",
      "gtzan/fold2/rock/rock.00041.au\n",
      "gtzan/fold2/rock/rock.00009.au\n",
      "gtzan/fold2/rock/rock.00026.au\n",
      "gtzan/fold2/rock/rock.00057.au\n",
      "gtzan/fold2/rock/rock.00040.au\n",
      "gtzan/fold2/rock/rock.00098.au\n",
      "gtzan/fold2/rock/rock.00055.au\n",
      "gtzan/fold2/rock/rock.00043.au\n",
      "gtzan/fold2/country/country.00009.au\n",
      "gtzan/fold2/country/country.00079.au\n",
      "gtzan/fold2/country/country.00099.au\n",
      "gtzan/fold2/country/country.00098.au\n",
      "gtzan/fold2/country/country.00078.au\n",
      "gtzan/fold2/country/country.00042.au\n",
      "gtzan/fold2/country/country.00024.au\n",
      "gtzan/fold2/country/country.00050.au\n",
      "gtzan/fold2/country/country.00051.au\n",
      "gtzan/fold2/country/country.00021.au\n",
      "gtzan/fold2/country/country.00036.au\n",
      "gtzan/fold2/country/country.00069.au\n",
      "gtzan/fold2/country/country.00046.au\n",
      "gtzan/fold2/country/country.00019.au\n",
      "gtzan/fold2/country/country.00034.au\n",
      "gtzan/fold2/country/country.00053.au\n",
      "gtzan/fold2/country/country.00052.au\n",
      "gtzan/fold2/country/country.00035.au\n",
      "gtzan/fold2/country/country.00004.au\n",
      "gtzan/fold2/country/country.00028.au\n",
      "gtzan/fold2/country/country.00097.au\n",
      "gtzan/fold2/country/country.00006.au\n",
      "gtzan/fold2/country/country.00092.au\n",
      "gtzan/fold2/country/country.00085.au\n",
      "gtzan/fold2/country/country.00072.au\n",
      "gtzan/fold2/country/country.00003.au\n",
      "gtzan/fold2/country/country.00014.au\n",
      "gtzan/fold2/country/country.00016.au\n",
      "gtzan/fold2/country/country.00039.au\n",
      "gtzan/fold2/country/country.00086.au\n",
      "gtzan/fold2/country/country.00071.au\n",
      "gtzan/fold2/country/country.00090.au\n",
      "gtzan/fold2/country/country.00017.au\n",
      "gtzan/fold2/hiphop/hiphop.00054.au\n",
      "gtzan/fold2/hiphop/hiphop.00033.au\n",
      "gtzan/fold2/hiphop/hiphop.00032.au\n",
      "gtzan/fold2/hiphop/hiphop.00008.au\n",
      "gtzan/fold2/hiphop/hiphop.00027.au\n",
      "gtzan/fold2/hiphop/hiphop.00099.au\n",
      "gtzan/fold2/hiphop/hiphop.00056.au\n",
      "gtzan/fold2/hiphop/hiphop.00044.au\n",
      "gtzan/fold2/hiphop/hiphop.00034.au\n",
      "gtzan/fold2/hiphop/hiphop.00046.au\n",
      "gtzan/fold2/hiphop/hiphop.00069.au\n",
      "gtzan/fold2/hiphop/hiphop.00036.au\n",
      "gtzan/fold2/hiphop/hiphop.00089.au\n",
      "gtzan/fold2/hiphop/hiphop.00021.au\n",
      "gtzan/fold2/hiphop/hiphop.00051.au\n",
      "gtzan/fold2/hiphop/hiphop.00020.au\n",
      "gtzan/fold2/hiphop/hiphop.00068.au\n",
      "gtzan/fold2/hiphop/hiphop.00018.au\n",
      "gtzan/fold2/hiphop/hiphop.00029.au\n",
      "gtzan/fold2/hiphop/hiphop.00058.au\n",
      "gtzan/fold2/hiphop/hiphop.00005.au\n",
      "gtzan/fold2/hiphop/hiphop.00083.au\n",
      "gtzan/fold2/hiphop/hiphop.00048.au\n",
      "gtzan/fold2/hiphop/hiphop.00038.au\n",
      "gtzan/fold2/hiphop/hiphop.00070.au\n",
      "gtzan/fold2/hiphop/hiphop.00001.au\n",
      "gtzan/fold2/hiphop/hiphop.00086.au\n",
      "gtzan/fold2/hiphop/hiphop.00066.au\n",
      "gtzan/fold2/hiphop/hiphop.00016.au\n",
      "gtzan/fold2/hiphop/hiphop.00064.au\n",
      "gtzan/fold2/hiphop/hiphop.00014.au\n",
      "gtzan/fold2/hiphop/hiphop.00072.au\n",
      "gtzan/fold2/hiphop/hiphop.00092.au\n",
      "gtzan/fold2/reggae/reggae.00070.au\n",
      "gtzan/fold2/reggae/reggae.00090.au\n",
      "gtzan/fold2/reggae/reggae.00038.au\n",
      "gtzan/fold2/reggae/reggae.00049.au\n",
      "gtzan/fold2/reggae/reggae.00066.au\n",
      "gtzan/fold2/reggae/reggae.00073.au\n",
      "gtzan/fold2/reggae/reggae.00064.au\n",
      "gtzan/fold2/reggae/reggae.00011.au\n",
      "gtzan/fold2/reggae/reggae.00096.au\n",
      "gtzan/fold2/reggae/reggae.00076.au\n",
      "gtzan/fold2/reggae/reggae.00029.au\n",
      "gtzan/fold2/reggae/reggae.00081.au\n",
      "gtzan/fold2/reggae/reggae.00006.au\n",
      "gtzan/fold2/reggae/reggae.00059.au\n",
      "gtzan/fold2/reggae/reggae.00058.au\n",
      "gtzan/fold2/reggae/reggae.00080.au\n",
      "gtzan/fold2/reggae/reggae.00060.au\n",
      "gtzan/fold2/reggae/reggae.00010.au\n",
      "gtzan/fold2/reggae/reggae.00012.au\n",
      "gtzan/fold2/reggae/reggae.00035.au\n",
      "gtzan/fold2/reggae/reggae.00053.au\n",
      "gtzan/fold2/reggae/reggae.00019.au\n",
      "gtzan/fold2/reggae/reggae.00068.au\n",
      "gtzan/fold2/reggae/reggae.00088.au\n",
      "gtzan/fold2/reggae/reggae.00050.au\n",
      "gtzan/fold2/reggae/reggae.00054.au\n",
      "gtzan/fold2/reggae/reggae.00024.au\n",
      "gtzan/fold2/reggae/reggae.00042.au\n",
      "gtzan/fold2/reggae/reggae.00030.au\n",
      "gtzan/fold2/reggae/reggae.00078.au\n",
      "gtzan/fold2/reggae/reggae.00027.au\n",
      "gtzan/fold2/reggae/reggae.00026.au\n",
      "gtzan/fold2/reggae/reggae.00041.au\n",
      "gtzan/fold2/jazz/jazz.00035.au\n",
      "gtzan/fold2/jazz/jazz.00052.au\n",
      "gtzan/fold2/jazz/jazz.00053.au\n",
      "gtzan/fold2/jazz/jazz.00036.au\n",
      "gtzan/fold2/jazz/jazz.00019.au\n",
      "gtzan/fold2/jazz/jazz.00020.au\n",
      "gtzan/fold2/jazz/jazz.00068.au\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "gtzan/fold2/jazz/jazz.00025.au\n",
      "gtzan/fold2/jazz/jazz.00055.au\n",
      "gtzan/fold2/jazz/jazz.00078.au\n",
      "gtzan/fold2/jazz/jazz.00057.au\n",
      "gtzan/fold2/jazz/jazz.00008.au\n",
      "gtzan/fold2/jazz/jazz.00040.au\n",
      "gtzan/fold2/jazz/jazz.00098.au\n",
      "gtzan/fold2/jazz/jazz.00030.au\n",
      "gtzan/fold2/jazz/jazz.00099.au\n",
      "gtzan/fold2/jazz/jazz.00056.au\n",
      "gtzan/fold2/jazz/jazz.00026.au\n",
      "gtzan/fold2/jazz/jazz.00090.au\n",
      "gtzan/fold2/jazz/jazz.00066.au\n",
      "gtzan/fold2/jazz/jazz.00093.au\n",
      "gtzan/fold2/jazz/jazz.00065.au\n",
      "gtzan/fold2/jazz/jazz.00029.au\n",
      "gtzan/fold2/jazz/jazz.00006.au\n",
      "gtzan/fold2/jazz/jazz.00011.au\n",
      "gtzan/fold2/jazz/jazz.00097.au\n",
      "gtzan/fold2/jazz/jazz.00060.au\n",
      "gtzan/fold2/jazz/jazz.00058.au\n",
      "gtzan/fold2/jazz/jazz.00080.au\n",
      "gtzan/fold2/jazz/jazz.00082.au\n",
      "gtzan/fold2/jazz/jazz.00075.au\n",
      "gtzan/fold2/jazz/jazz.00094.au\n",
      "gtzan/fold2/jazz/jazz.00004.au\n",
      "gtzan/fold2/pop/pop.00074.au\n",
      "gtzan/fold2/pop/pop.00094.au\n",
      "gtzan/fold2/pop/pop.00063.au\n",
      "gtzan/fold2/pop/pop.00082.au\n",
      "gtzan/fold2/pop/pop.00075.au\n",
      "gtzan/fold2/pop/pop.00058.au\n",
      "gtzan/fold2/pop/pop.00096.au\n",
      "gtzan/fold2/pop/pop.00015.au\n",
      "gtzan/fold2/pop/pop.00092.au\n",
      "gtzan/fold2/pop/pop.00072.au\n",
      "gtzan/fold2/pop/pop.00085.au\n",
      "gtzan/fold2/pop/pop.00002.au\n",
      "gtzan/fold2/pop/pop.00003.au\n",
      "gtzan/fold2/pop/pop.00084.au\n",
      "gtzan/fold2/pop/pop.00073.au\n",
      "gtzan/fold2/pop/pop.00093.au\n",
      "gtzan/fold2/pop/pop.00039.au\n",
      "gtzan/fold2/pop/pop.00049.au\n",
      "gtzan/fold2/pop/pop.00071.au\n",
      "gtzan/fold2/pop/pop.00056.au\n",
      "gtzan/fold2/pop/pop.00099.au\n",
      "gtzan/fold2/pop/pop.00055.au\n",
      "gtzan/fold2/pop/pop.00042.au\n",
      "gtzan/fold2/pop/pop.00024.au\n",
      "gtzan/fold2/pop/pop.00054.au\n",
      "gtzan/fold2/pop/pop.00047.au\n",
      "gtzan/fold2/pop/pop.00018.au\n",
      "gtzan/fold2/pop/pop.00020.au\n",
      "gtzan/fold2/pop/pop.00051.au\n",
      "gtzan/fold2/pop/pop.00046.au\n",
      "gtzan/fold2/pop/pop.00069.au\n",
      "gtzan/fold2/pop/pop.00053.au\n",
      "gtzan/fold2/pop/pop.00045.au\n",
      "gtzan/fold2/metal/metal.00088.au\n",
      "gtzan/fold2/metal/metal.00018.au\n",
      "gtzan/fold2/metal/metal.00047.au\n",
      "gtzan/fold2/metal/metal.00046.au\n",
      "gtzan/fold2/metal/metal.00019.au\n",
      "gtzan/fold2/metal/metal.00034.au\n",
      "gtzan/fold2/metal/metal.00052.au\n",
      "gtzan/fold2/metal/metal.00079.au\n",
      "gtzan/fold2/metal/metal.00078.au\n",
      "gtzan/fold2/metal/metal.00008.au\n",
      "gtzan/fold2/metal/metal.00057.au\n",
      "gtzan/fold2/metal/metal.00040.au\n",
      "gtzan/fold2/metal/metal.00030.au\n",
      "gtzan/fold2/metal/metal.00098.au\n",
      "gtzan/fold2/metal/metal.00042.au\n",
      "gtzan/fold2/metal/metal.00025.au\n",
      "gtzan/fold2/metal/metal.00024.au\n",
      "gtzan/fold2/metal/metal.00043.au\n",
      "gtzan/fold2/metal/metal.00072.au\n",
      "gtzan/fold2/metal/metal.00016.au\n",
      "gtzan/fold2/metal/metal.00039.au\n",
      "gtzan/fold2/metal/metal.00070.au\n",
      "gtzan/fold2/metal/metal.00063.au\n",
      "gtzan/fold2/metal/metal.00074.au\n",
      "gtzan/fold2/metal/metal.00004.au\n",
      "gtzan/fold2/metal/metal.00082.au\n",
      "gtzan/fold2/metal/metal.00095.au\n",
      "gtzan/fold2/metal/metal.00060.au\n",
      "gtzan/fold2/metal/metal.00058.au\n",
      "gtzan/fold2/metal/metal.00080.au\n",
      "gtzan/fold2/metal/metal.00028.au\n",
      "gtzan/fold2/metal/metal.00006.au\n",
      "gtzan/fold2/metal/metal.00061.au\n",
      "\n",
      "TRAIN: [  1   2   3   4   5   9  10  11  12  13  15  16  17  18  20  21  22  26\n",
      "  27  28  29  30  31  32  33  34  35  36  37  38  40  41  43  45  46  49\n",
      "  50  51  52  54  58  59  62  65  66  70  71  73  74  76  77  78  80  81\n",
      "  84  85  86  87  88  89  90  91  93  95  96  97  99 101 102 103 104 105\n",
      " 109 110 111 112 113 115 116 117 118 120 121 122 126 127 128 129 130 131\n",
      " 132 133 134 135 136 137 138 140 141 143 145 146 149 150 151 152 154 158\n",
      " 159 162 165 166 170 171 173 174 176 177 178 180 181 184 185 186 187 188\n",
      " 189 190 191 193 195 196 197 199 201 202 203 204 205 209 210 211 212 213\n",
      " 215 216 217 218 220 221 222 226 227 228 229 230 231 232 233 234 235 236\n",
      " 237 238 240 241 243 245 246 249 250 251 252 254 258 259 262 265 266 270\n",
      " 271 273 274 276 277 278 280 281 284 285 286 287 288 289 290 291 293 295\n",
      " 296 297 299 301 302 303 304 305 309 310 311 312 313 315 316 317 318 320\n",
      " 321 322 326 327 328 329 330 331 332 333 334 335 336 337 338 340 341 343\n",
      " 345 346 349 350 351 352 354 358 359 362 365 366 370 371 373 374 376 377\n",
      " 378 380 381 384 385 386 387 388 389 390 391 393 395 396 397 399 401 402\n",
      " 403 404 405 409 410 411 412 413 415 416 417 418 420 421 422 426 427 428\n",
      " 429 430 431 432 433 434 435 436 437 438 440 441 443 445 446 449 450 451\n",
      " 452 454 458 459 462 465 466 470 471 473 474 476 477 478 480 481 484 485\n",
      " 486 487 488 489 490 491 493 495 496 497 499 501 502 503 504 505 509 510\n",
      " 511 512 513 515 516 517 518 520 521 522 526 527 528 529 530 531 532 533\n",
      " 534 535 536 537 538 540 541 543 545 546 549 550 551 552 554 558 559 562\n",
      " 565 566 570 571 573 574 576 577 578 580 581 584 585 586 587 588 589 590\n",
      " 591 593 595 596 597 599 601 602 603 604 605 609 610 611 612 613 615 616\n",
      " 617 618 620 621 622 626 627 628 629 630 631 632 633 634 635 636 637 638\n",
      " 640 641 643 645 646 649 650 651 652 654 658 659 662 665 666 670 671 673\n",
      " 674 676 677 678 680 681 684 685 686 687 688 689 690 691 693 695 696 697\n",
      " 699 701 702 703 704 705 709 710 711 712 713 715 716 717 718 720 721 722\n",
      " 726 727 728 729 730 731 732 733 734 735 736 737 738 740 741 743 745 746\n",
      " 749 750 751 752 754 758 759 762 765 766 770 771 773 774 776 777 778 780\n",
      " 781 784 785 786 787 788 789 790 791 793 795 796 797 799 801 802 803 804\n",
      " 805 809 810 811 812 813 815 816 817 818 820 821 822 826 827 828 829 830\n",
      " 831 832 833 834 835 836 837 838 840 841 843 845 846 849 850 851 852 854\n",
      " 858 859 862 865 866 870 871 873 874 876 877 878 880 881 884 885 886 887\n",
      " 888 889 890 891 893 895 896 897 899 901 902 903 904 905 909 910 911 912\n",
      " 913 915 916 917 918 920 921 922 926 927 928 929 930 931 932 933 934 935\n",
      " 936 937 938 940 941 943 945 946 949 950 951 952 954 958 959 962 965 966\n",
      " 970 971 973 974 976 977 978 980 981 984 985 986 987 988 989 990 991 993\n",
      " 995 996 997 999] \n",
      "\n",
      "TEST: [  0   6   7   8  14  19  23  24  25  39  42  44  47  48  53  55  56  57\n",
      "  60  61  63  64  67  68  69  72  75  79  82  83  92  94  98 100 106 107\n",
      " 108 114 119 123 124 125 139 142 144 147 148 153 155 156 157 160 161 163\n",
      " 164 167 168 169 172 175 179 182 183 192 194 198 200 206 207 208 214 219\n",
      " 223 224 225 239 242 244 247 248 253 255 256 257 260 261 263 264 267 268\n",
      " 269 272 275 279 282 283 292 294 298 300 306 307 308 314 319 323 324 325\n",
      " 339 342 344 347 348 353 355 356 357 360 361 363 364 367 368 369 372 375\n",
      " 379 382 383 392 394 398 400 406 407 408 414 419 423 424 425 439 442 444\n",
      " 447 448 453 455 456 457 460 461 463 464 467 468 469 472 475 479 482 483\n",
      " 492 494 498 500 506 507 508 514 519 523 524 525 539 542 544 547 548 553\n",
      " 555 556 557 560 561 563 564 567 568 569 572 575 579 582 583 592 594 598\n",
      " 600 606 607 608 614 619 623 624 625 639 642 644 647 648 653 655 656 657\n",
      " 660 661 663 664 667 668 669 672 675 679 682 683 692 694 698 700 706 707\n",
      " 708 714 719 723 724 725 739 742 744 747 748 753 755 756 757 760 761 763\n",
      " 764 767 768 769 772 775 779 782 783 792 794 798 800 806 807 808 814 819\n",
      " 823 824 825 839 842 844 847 848 853 855 856 857 860 861 863 864 867 868\n",
      " 869 872 875 879 882 883 892 894 898 900 906 907 908 914 919 923 924 925\n",
      " 939 942 944 947 948 953 955 956 957 960 961 963 964 967 968 969 972 975\n",
      " 979 982 983 992 994 998]\n",
      "\n",
      "TRAIN: (670,) TEST: (330,)\n",
      "gtzan/fold3/disco/disco.00095.au\n",
      "gtzan/fold3/disco/disco.00083.au\n",
      "gtzan/fold3/disco/disco.00074.au\n",
      "gtzan/fold3/disco/disco.00004.au\n",
      "gtzan/fold3/disco/disco.00061.au\n",
      "gtzan/fold3/disco/disco.00006.au\n",
      "gtzan/fold3/disco/disco.00077.au\n",
      "gtzan/fold3/disco/disco.00028.au\n",
      "gtzan/fold3/disco/disco.00060.au\n",
      "gtzan/fold3/disco/disco.00072.au\n",
      "gtzan/fold3/disco/disco.00087.au\n",
      "gtzan/fold3/disco/disco.00067.au\n",
      "gtzan/fold3/disco/disco.00048.au\n",
      "gtzan/fold3/disco/disco.00049.au\n",
      "gtzan/fold3/disco/disco.00086.au\n",
      "gtzan/fold3/disco/disco.00001.au\n",
      "gtzan/fold3/disco/disco.00040.au\n",
      "gtzan/fold3/disco/disco.00030.au\n",
      "gtzan/fold3/disco/disco.00078.au\n",
      "gtzan/fold3/disco/disco.00057.au\n",
      "gtzan/fold3/disco/disco.00009.au\n",
      "gtzan/fold3/disco/disco.00056.au\n",
      "gtzan/fold3/disco/disco.00099.au\n",
      "gtzan/fold3/disco/disco.00031.au\n",
      "gtzan/fold3/disco/disco.00041.au\n",
      "gtzan/fold3/disco/disco.00054.au\n",
      "gtzan/fold3/disco/disco.00055.au\n",
      "gtzan/fold3/disco/disco.00089.au\n",
      "gtzan/fold3/disco/disco.00036.au\n",
      "gtzan/fold3/disco/disco.00019.au\n",
      "gtzan/fold3/disco/disco.00022.au\n",
      "gtzan/fold3/disco/disco.00045.au\n",
      "gtzan/fold3/disco/disco.00053.au\n",
      "gtzan/fold3/blues/blues.00047.au\n",
      "gtzan/fold3/blues/blues.00050.au\n",
      "gtzan/fold3/blues/blues.00051.au\n",
      "gtzan/fold3/blues/blues.00089.au\n",
      "gtzan/fold3/blues/blues.00034.au\n"
     ]
    },
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "gtzan/fold3/blues/blues.00052.au\n",
      "gtzan/fold3/blues/blues.00056.au\n",
      "gtzan/fold3/blues/blues.00079.au\n",
      "gtzan/fold3/blues/blues.00026.au\n",
      "gtzan/fold3/blues/blues.00032.au\n",
      "gtzan/fold3/blues/blues.00054.au\n",
      "gtzan/fold3/blues/blues.00065.au\n",
      "gtzan/fold3/blues/blues.00002.au\n",
      "gtzan/fold3/blues/blues.00085.au\n",
      "gtzan/fold3/blues/blues.00014.au\n",
      "gtzan/fold3/blues/blues.00064.au\n",
      "gtzan/fold3/blues/blues.00049.au\n",
      "gtzan/fold3/blues/blues.00016.au\n",
      "gtzan/fold3/blues/blues.00091.au\n",
      "gtzan/fold3/blues/blues.00086.au\n",
      "gtzan/fold3/blues/blues.00001.au\n",
      "gtzan/fold3/blues/blues.00000.au\n",
      "gtzan/fold3/blues/blues.00090.au\n",
      "gtzan/fold3/blues/blues.00067.au\n",
      "gtzan/fold3/blues/blues.00038.au\n",
      "gtzan/fold3/blues/blues.00083.au\n",
      "gtzan/fold3/blues/blues.00013.au\n",
      "gtzan/fold3/blues/blues.00062.au\n",
      "gtzan/fold3/blues/blues.00075.au\n",
      "gtzan/fold3/blues/blues.00082.au\n",
      "gtzan/fold3/blues/blues.00011.au\n",
      "gtzan/fold3/blues/blues.00061.au\n",
      "gtzan/fold3/blues/blues.00059.au\n",
      "gtzan/fold3/classical/classical.00054.au\n",
      "gtzan/fold3/classical/classical.00025.au\n",
      "gtzan/fold3/classical/classical.00055.au\n",
      "gtzan/fold3/classical/classical.00078.au\n",
      "gtzan/fold3/classical/classical.00030.au\n",
      "gtzan/fold3/classical/classical.00009.au\n",
      "gtzan/fold3/classical/classical.00035.au\n",
      "gtzan/fold3/classical/classical.00022.au\n",
      "gtzan/fold3/classical/classical.00052.au\n",
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    },
    {
     "name": "stdout",
     "output_type": "stream",
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      "gtzan/fold3/metal/metal.00096.au\n"
     ]
    }
   ],
   "source": [
    "# Split the Dataset into 3 Folds\n",
    "from sklearn.model_selection import StratifiedKFold\n",
    "\n",
    "gkf = StratifiedKFold(n_splits=3, random_state=7, shuffle=True)\n",
    "gkf.split(file_list, genre_list)\n",
    "print(gkf)\n",
    "fold_num = 1 \n",
    "\n",
    "for train_index, test_index in gkf.split(file_list, genre_list):\n",
    "    \n",
    "    print(\"\\nTRAIN:\", train_index, \"\\n\\nTEST:\", test_index)\n",
    "    print(\"\\nTRAIN:\", shape(train_index), \"TEST:\", shape(test_index))\n",
    "    \n",
    "    for ii in test_index:\n",
    "        data , samplerate = sf.read(file_list[ii])\n",
    "        genre = file_list[ii].split('/')[2]\n",
    "        track = file_list[ii].split('/')[3]\n",
    "        directory = \"gtzan/fold\"+str(fold_num)+\"/\"+genre\n",
    "        #Verify if it exists, otherwise create it\n",
    "        if not os.path.exists(directory):\n",
    "            os.makedirs(directory)\n",
    "            \n",
    "        print(\"gtzan/fold\"+str(fold_num)+\"/\"+genre+\"/\"+track)\n",
    "        sf.write((directory+\"/\"+track), data, samplerate)\n",
    "    fold_num +=1\n",
    "    \n",
    "    "
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 7,
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "Notebook Ended\n"
     ]
    }
   ],
   "source": [
    "print(\"Notebook Ended\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "metadata": {
    "collapsed": true
   },
   "outputs": [],
   "source": []
  }
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