======================== unified (from filesystem) ========================
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                                        'duration'  '186'
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                                      'lastfmtags'  "['folk', 'classic rock', '60s', 'singer-songwriter', 'acoustic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '20'
                                            'date'  '1991'
                                        'comments'  ''
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                                        'acoustid'  '98ec83f4-7ba7-41a4-86d4-17d340451112'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TDOR' (Original release time)                      '1991'
'TDRC' (Recording time)                             '1991'
'TIT2' (Title/songname/content description)         'The Sound of Silence'
'TKEY' (Initial key)                                '2B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Simon and Garfunkel'
'TPE2' (Band/orchestra/accompaniment)               'Simon and Garfunkel'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Columbia'
'TRCK' (Track number/Position in set)               '1/20'
'TSO2'                                              'Simon & Garfunkel'
'TSOP' (Performer sort order)                       'Simon & Garfunkel'
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'TXXX:Acoustid Id'                                  '98ec83f4-7ba7-41a4-86d4-17d340451112'
'TXXX:Artists'                                      'Simon and Garfunkel'
'TXXX:BARCODE'                                      '9399746804524'
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'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '5d02f264-e225-41ff-83f7-d9b1f0b1874a'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['folk', 'classic rock', '60s', 'singer-songwriter', 'acoustic']
'TXXX:originalyear'                                 '1991'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.23 dB'
'TXXX:replaygain_track_peak'                        '0.565568'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5454a5f8-aaed-4106-8b31-5d3eadb9fe0e')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Simon & Garfunkel - Simon and Garfunkel/Simon And Garfunkel - 20 Greatest Hits/Simon and Garfunkel - The Sound of Silence.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  186
                                           'genre'  ifs-songwriter
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                                           'mtime'  1628356527
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos & And ifs songwriter
                                      'tag_artist'  Simon and Garfunkel
                                     'tag_release'  20 Greatest Hits
                                       'tag_title'  The Sound of Silence
                                             'bpm'  107.0
                                    'search_title'  'of':3 'silence':4 'sound':2 'the':1
                                   'search_artist'  'and':2 'garfunkel':3 'simon':1
                                  'search_release'  '20':1 'greatest':2 'hits':3
                                     'search_rest'  '00singer':1 'and':4 'eos':3 'ifs':5 'songwriter':2
                                    'search_combo'  '00singer':11 '20':8C 'and':6B,14 'eos':13 'garfunkel':7B 'greatest':9C 'hits':10C 'ifs':15 'of':3A 'silence':4A 'simon':5B 'songwriter':12 'sound':2A 'the':1A
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['folk', 'classic rock', '60s', 'singer-songwriter', 'acoustic']
                                        'tag_date'  1991
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628356527.447646  (2021-08-07 19:15:27)
                             'size'  3035186