======================== unified (from filesystem) ========================
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                                        'duration'  '131'
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                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '11'
                                      'tracktotal'  '13'
                                            'date'  '2004'
                                        'comments'  ''
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                                             'key'  '7B'
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======================== rawer (from filesystem) ========================

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'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Velvet Snow'
'TKEY' (Initial key)                                '7B'
'TMED' (Media type)                                 '12" Vinyl'
'TPE1' (Lead performer(s)/Soloist(s))               'Kings of Leon'
'TPE2' (Band/orchestra/accompaniment)               'Kings of Leon'
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'TPUB' (Publisher)                                  'The Control Group'
'TRCK' (Track number/Position in set)               '11/13'
'TSO2'                                              'Kings of Leon'
'TSOP' (Performer sort order)                       'Kings of Leon'
'TSRC' (ISRC (international standard recording code))  'USRC10401367'
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'TXXX:Artists'                                      'Kings of Leon'
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'TXXX:MusicBrainz Artist Id'                        '6ffb8ea9-2370-44d8-b678-e9237bbd347b'
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'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
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'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'southern rock', 'indie rock', 'rock']
'TXXX:originalyear'                                 '2004'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'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'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.373873'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6fcc002e-15cf-426a-8039-3a7567331912')

========================== row from database ==========================
                                              'id'  1288114
                                            'path'  /data/Music/Bulk/00poprockelectronic/Kings of Leon/Kings Of Leon/Aha Shake Heartbreak/Kings Of Leon - Aha Shake Heartbreak - 11 - Velvet Snow.mp3
                                         'working'  None
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                                    'duration_sec'  131
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4002866
                                           'mtime'  1621697436
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Of Of 11 ifs songwriter indie rock
                                      'tag_artist'  Kings of Leon
                                     'tag_release'  Aha Shake Heartbreak
                                       'tag_title'  Velvet Snow
                                             'bpm'  139.0
                                    'search_title'  'snow':2 'velvet':1
                                   'search_artist'  'kings':1 'leon':3 'of':2
                                  'search_release'  'aha':1 'heartbreak':3 'shake':2
                                     'search_rest'  '00poprockelectronic':1 'ifs':3 'indie':5 'of':2 'rock':6 'songwriter':4
                                    'search_combo'  '00poprockelectronic':9 'aha':6C 'heartbreak':8C 'ifs':11 'indie':13 'kings':3B 'leon':5B 'of':4B,10 'rock':14 'shake':7C 'snow':2A 'songwriter':12 'velvet':1A
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'southern rock', 'indie rock', 'rock']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621697436.0861268  (2021-05-22 17:30:36)
                             'size'  4002866