======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '503'
                                          'artist'  'William Onyeabor'
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                                           'title'  'Better Change Your Mind'
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                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-africa'
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                                             'key'  '1A'
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======================== rawer (from filesystem) ========================

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'TCON' (Content type, a.k.a. Genre)                 'loc-africa'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004-04-06'
'TIT2' (Title/songname/content description)         'Better Change Your Mind'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'William Onyeabor'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Luaka Bop'
'TRCK' (Track number/Position in set)               '7/12'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Onyeabor, William'
'TXXX:Acoustid Id'                                  '36fcb653-6172-47fe-88b8-35c1964c4efe'
'TXXX:Artists'                                      'William Onyeabor'
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'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['afrobeat', 'funk', 'nigeria', 'african', 'african funk']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
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========================== row from database ==========================
                                              'id'  1539848
                                            'path'  /data/Music/Bulk/00localcharacter/Vol. 3-Love_s A Real Thing/07 - (Onyeabor, William)-Better Change Your Mind.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  503
                                           'genre'  loc-africa
                                        'filesize'  8173494
                                           'mtime'  1678644466
                                   'redo_metaread'  0
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                                      'tag_artist'  William Onyeabor
                                     'tag_release'  World Psychedelic Classics, Volume 3: Love's a Real Thing
                                       'tag_title'  Better Change Your Mind
                                             'bpm'  113.5
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                                   'search_artist'  'onyeabor':2 'william':1
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                                    'search_combo'  '3':12C,13C 'a':17C,24 'africa':30 'better':1A 'change':2A 'classics':9C,10C 'loc':29 'love':14C,22 'loves':16C 'mind':4A 'onyeabor':6B,25,26 'psychedelic':8C 'real':18C 's':15C,23 'thing':19C 'vol':20,21 'volume':11C 'william':5B,27,28 'world':7C 'your':3A
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HAP-3', 'Q-SYN-1', 'Q-UNU-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', 'Q-CHART-2', 'Q-JZFKS-2', 'Q-OLDST-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-2', 'Q-LOCALNESS-3']
                                      'lastfmtags'  ['afrobeat', 'funk', 'nigeria', 'african', 'african funk']
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678644465.500338  (2023-03-12 19:07:45)
                             'size'  8173494