======================== unified (from filesystem) ========================
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                                        'duration'  '174'
                                          'artist'  'Jim Croce'
                                     'text_people'  ''
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                                           'title'  'Next Time, This Time'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '18'
                                            'date'  '1989'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock;mi-guitar-acoustic;rock-cppex;ifs-songwriter-folk'
                                             'bpm'  '128'
                                             'key'  '8B'
                                        'acoustid'  '9739596a-04d0-42e1-887c-8bfdefe856f5'
rest: ''

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

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'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-rock',
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'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '1989'
'TIT2' (Title/songname/content description)         'Next Time, This Time'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Jim Croce'
'TPE2' (Band/orchestra/accompaniment)               'Jim Croce'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '1/18'
'TSO2'                                              'Croce, Jim'
'TSOP' (Performer sort order)                       'Croce, Jim'
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'TXXX:Artists'                                      'Jim Croce'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['pop', 'folk, world, & country']
'TXXX:lastfmtags'                                   ['rock', 'classic rock', '70s', 'folk', 'singer songwriter']
'TXXX:originalyear'                                 '1989'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
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'TXXX:q-piano'                                      '1'
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'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.27 dB'
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========================== row from database ==========================
                                              'id'  1384739
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The legendary Jim Croce/01  Next time, this time - Jim Croce.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  174
                                           'genre'  ifs-songwriter-rock;mi-guitar-acoustic;rock-cppex;ifs-songwriter-folk
                                        'filesize'  5588343
                                           'mtime'  1640869940
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos legendary 01 time, this time ifs songwriter rock;mi guitar acoustic;rock cppex;ifs songwriter folk
                                      'tag_artist'  Jim Croce
                                     'tag_release'  The Legendary Jim Croce
                                       'tag_title'  Next Time, This Time
                                             'bpm'  128.0
                                    'search_title'  'next':1 'this':4 'time':2,3
                                   'search_artist'  'croce':2 'jim':1
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                                    'search_combo'  '00singer':11 'acoustic':24,26 'cppex':28,30 'croce':6B,10C 'eos':13 'folk':32 'guitar':23 'ifs':18,29,31 'jim':5B,9C 'legendary':8C,14 'mi':20,22 'next':1A 'rock':19,21,25,27 'songwriter':12 'the':7C 'this':4A,17 'time':2A,3A,15,16
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-3', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['rock', 'classic rock', '70s', 'folk', 'singer songwriter']
                                        'tag_date'  1989
                                     'discogstags'  ['pop', 'folk, world, & country']

============================== file details ==============================
                                           'mtime'  1640869940.0722363  (2021-12-30 14:12:20)
                             'size'  5588343