Created
May 7, 2021 15:57
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Script to rewrite the MP3 metadata in Ken Burns' Jazz album to be based on the length of the whole album
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| # The Ken Burns Jazz album MP3s from Amazon have separate track and disc | |
| # number metadata, but many MP3 players don't look at the disc number, | |
| # which makes it hard to play the album's tracks in order. | |
| # | |
| # This script goes through all the MP3's of the album and removes the | |
| # disc number and rewrites the track number to be based on all the | |
| # tracks in the album, rather than all the tracks on a particular disc. | |
| # | |
| # This script could theoretically be used on any other multi-disc MP3 | |
| # album, but I've only tried it on the Ken Burns Jazz MP3 album in | |
| # particular. | |
| # | |
| # Note that this code was informed by the following: | |
| # | |
| # https://methodmatters.github.io/editing-id3-tags-mp3-meta-data-in-python/ | |
| from pathlib import Path | |
| from mutagen.mp3 import MP3 | |
| from mutagen.easyid3 import EasyID3 | |
| import glob | |
| ALBUM_MP3_GLOB = Path("album") / "*.mp3" | |
| mp3_files = glob.glob(str(ALBUM_MP3_GLOB)) | |
| tracks = [] | |
| for mp3_file in mp3_files: | |
| p = Path(mp3_file) | |
| mp3 = MP3(mp3_file, ID3=EasyID3) | |
| if 'discnumber' not in mp3: | |
| raise Exception( | |
| 'No "discnumber" in MP3 metadata! Has this script ' | |
| 'already been run?' | |
| ) | |
| disc = int(mp3['discnumber'][0].split('/')[0]) | |
| track = int(mp3['tracknumber'][0].split('/')[0]) | |
| disctrack = (disc * 100) + track | |
| tracks.append((disctrack, mp3)) | |
| tracks.sort(key=lambda x: x[0]) | |
| total_tracks = len(tracks) | |
| tracknum = 0 | |
| print("Rewriting tracks to be based on length of whole album.") | |
| for _, mp3 in tracks: | |
| tracknum += 1 | |
| newtrack = f'{tracknum}/{total_tracks}' | |
| del mp3['discnumber'] | |
| mp3['tracknumber'] = newtrack | |
| print(newtrack, mp3['title'][0]) | |
| mp3.save() | |
| print("Done!") |
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