======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '141'
                                          'artist'  'Louis and Bebe Barron'
                                     'text_people'  ''
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                                           'title'  'Main Title From Forbidden Planet'
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                                      'lastfmtags'  ("['electronic', 'experimental', 'early electronic', 'soundtrack', "
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                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '16'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '140.1'
                                             'key'  '8A'
                                        'acoustid'  '157d042b-c413-431b-abbe-802c9fc8a966'
rest: ''

======================== rawer (from filesystem) ========================

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'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-04-25'
'TIT2' (Title/songname/content description)         'Main Title From Forbidden Planet'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Louis and Bebe Barron'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/3'
'TPUB' (Publisher)                                  'Ellipsis Arts...'
'TRCK' (Track number/Position in set)               '8/16'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Barron, Louis and Bebe'
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'TXXX:MusicBrainz Album Type'                       'compilation'
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'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
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'TXXX:q-syn'                                        '3'
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'TXXX:replaygain_track_gain'                        '+1.20 dB'
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                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  141
                                           'genre'  electronic-experimental-early
                                        'filesize'  2276987
                                           'mtime'  1636921057
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                                      'tag_artist'  Louis and Bebe Barron
                                     'tag_release'  OHM: The Early Gurus of Electronic Music
                                       'tag_title'  Main Title From Forbidden Planet
                                             'bpm'  140.1
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                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['electronic', 'experimental', 'early electronic', 'soundtrack', 'contemporary classical']
                                        'tag_date'  2000
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636921057.1673877  (2021-11-14 21:17:37)
                             'size'  2276987