======================== unified (from filesystem) ========================
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                                        'duration'  '256'
                                          'artist'  'The Magnetic Fields'
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                                      'lastfmtags'  "['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
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                                      'tracktotal'  '23'
                                            'date'  '1999'
                                        'comments'  ''
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'COMM:ID3v1 Comment:eng'                            '.:.I..D..M.:.:.I..D..M.:.:..'
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'TDOR' (Original release time)                      '1999'
'TDRC' (Recording time)                             '1999-09-07'
'TIT2' (Title/songname/content description)         "I Don't Believe in the Sun"
'TKEY' (Initial key)                                '10A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Magnetic Fields'
'TPE2' (Band/orchestra/accompaniment)               'The Magnetic Fields'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Merge Records'
'TRCK' (Track number/Position in set)               '2/23'
'TSO2'                                              'Magnetic Fields, The'
'TSOP' (Performer sort order)                       'Magnetic Fields, The'
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'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
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'TXXX:Q-PIANO'                                      '2'
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'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
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'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
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'TXXX:replaygain_track_peak'                        '0.438566'
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========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/The Magnetic Fields - 2000 - 69 Love Songs (Circus Records) [192k]/102 - i dont believe in the sun.mp3
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                                    'duration_sec'  256
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  6154386
                                           'mtime'  1636403030
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                                        'rest_str'   00exnnpjpsprgttidm 2000 (Circus Records) [192k] 102 dont believe sun ifs songwriter indie unsorted
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                                     'tag_release'  69 Love Songs, Volume 1
                                       'tag_title'  I Don't Believe in the Sun
                                             'bpm'  109.5
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                                   'search_artist'  'fields':3 'magnetic':2 'the':1
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                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'Q-PIANO-2', 'q-mixbeat-1', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'mellow', 'ukulele', 'beautiful']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636403029.524833  (2021-11-08 21:23:49)
                             'size'  6154386