======================== unified (from filesystem) ========================
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                                        'duration'  '251'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  'Inside Deep Note: Music of 1970s Adult Cinema 2'
                                           'title'  "California Creamin'"
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '24'
                                            'date'  '1975'
                                        'comments'  ''
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                                             'bpm'  '90.2'
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                                        'acoustid'  'bb286127-e060-4f96-99c3-cb3a57fb8071'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TDRC' (Recording time)                             '1975'
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'TIT2' (Title/songname/content description)         "California Creamin'"
'TKEY' (Initial key)                                '11B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TPE2' (Band/orchestra/accompaniment)               '[unknown]'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '15/24'
'TSO2'                                              '[unknown]'
'TSOP' (Performer sort order)                       '[unknown]'
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'TXXX:Acoustid Id'                                  'bb286127-e060-4f96-99c3-cb3a57fb8071'
'TXXX:Artists'                                      '[unknown]'
'TXXX:MusicBrainz Album Artist Id'                  '125ec42a-7229-4250-afc5-e057484327fe'
'TXXX:MusicBrainz Album Id'                         '1d075d99-2406-4093-af06-2d7a8e87d6b1'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '125ec42a-7229-4250-afc5-e057484327fe'
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'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
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'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
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'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
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'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-12.34 dB'
'TXXX:replaygain_track_peak'                        '1.254759'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'674a3fda-a5b3-4ae0-93b2-c8772df8081e')
'USER:Cop'                                          ('yright notice. These materials are protected by United States copyright law '
 'and by international treaties. You may use these materials for your '
 'personal, non-commercial use only. You may not otherwise reproduce, '
 'distribute, publicly perform, publicly display, or create derivative works '
 'of these materials, unless authorized by the appropriate copyright owner(s).')

========================== row from database ==========================
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                                    'duration_sec'  251
                                           'genre'  funk or soul;set-pl-mor;set-pl-porngroove
                                        'filesize'  5529493
                                           'mtime'  1622547551
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                                     'tag_release'  Inside Deep Note: Music of 1970s Adult Cinema 2
                                       'tag_title'  California Creamin'
                                             'bpm'  90.2
                                    'search_title'  'california':1 'creamin':2,3
                                   'search_artist'  'unknown':1,2
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                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622547551.3712857  (2021-06-01 13:39:11)
                             'size'  5529493