======================== unified (from filesystem) ========================
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                                        'duration'  '194'
                                          'artist'  'Jack Costanzo'
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                                           'title'  'I Got a Bongo'
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                                      'lastfmtags'  "['lounge', '11', 'jazz', 'illstreet', 'latin']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  '20'
                                            'date'  '1996'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-lounge or exotica or bossa'
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                                             'key'  '7A'
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rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Ultra-Lounge, Volume 9: Cha-Cha de Amor'
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'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-lounge or exotica or bossa'
'TDOR' (Original release time)                      '1996'
'TDRC' (Recording time)                             '1996-07-09'
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'TIT2' (Title/songname/content description)         'I Got a Bongo'
'TKEY' (Initial key)                                '7A'
'TLEN' (Length)                                     '194925'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Jack Costanzo'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Capitol Records'
'TRCK' (Track number/Position in set)               '20/20'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Costanzo, Jack'
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'TXXX:BARCODE'                                      '724383759521'
'TXXX:CATALOGNUMBER'                                'CDP 7243 8 37595 2 1'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'db8b142e-f7e1-43c8-a967-af37fe27e290'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '287d9323-9f3f-4cf7-94e2-3a6b91a38887'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['lounge', '11', 'jazz', 'illstreet', 'latin']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.37 dB'
'TXXX:replaygain_track_peak'                        '0.646177'
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========================== row from database ==========================
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                                    'duration_sec'  194
                                           'genre'  prerock-jb-jazz-lounge or exotica or bossa
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                                           'mtime'  1620536877
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                                      'tag_artist'  Jack Costanzo
                                     'tag_release'  Ultra-Lounge, Volume 9: Cha-Cha de Amor
                                       'tag_title'  I Got a Bongo
                                             'bpm'  103.01
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                                   'search_artist'  'costanzo':2 'jack':1
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                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['lounge', '11', 'jazz', 'illstreet', 'latin']
                                        'tag_date'  1996
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620536876.8123577  (2021-05-09 07:07:56)
                             'size'  4688467