======================== unified (from filesystem) ========================
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                                        'duration'  '210'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                            'date'  '1980'
                                        'comments'  ''
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rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 'electronic-we-new wave or post punk-minimal wave'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         'Your Passion'
'TKEY' (Initial key)                                '2A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Martin Dupont'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Flexi-Pop'
'TRCK' (Track number/Position in set)               '7/21'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Martin Dupont'
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'TXXX:q-busy'                                       '3'
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'TXXX:q-drums'                                      '3'
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'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
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'TXXX:q-play'                                       '3'
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'TXXX:q-vocals'                                     '2'
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                                           'genre'  electronic-we-new wave or post punk-minimal wave
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                                           'mtime'  1620611477
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                                     'tag_release'  Return of Flexi-Pop, Volume 9
                                       'tag_title'  Your Passion
                                             'bpm'  107.2
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                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['coldwave', 'minimal synth', 'post punk', 'french', 'new wave']
                                        'tag_date'  1980
                                     'discogstags'  ['new wave', 'electronic']

============================== file details ==============================
                                           'mtime'  1620611476.902677  (2021-05-10 03:51:16)
                             'size'  5055362