======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '177'
                                          'artist'  'The Uniques'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'Chocolate Bar (Lucky Four, 1962) 1'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-LOCALNESS-2', 'Q-HHRNBTT-2', "
 "'Q-OLDST-2', 'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'reggae', 'ska', 'slovak', 'rocksteady']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '29'
                                            'date'  '1965'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '105.149'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000006B0 000006AF 000024C5 000024C5 00028E97 00028E97 00006A7A 000065B8 '
 '00004324 0002636D')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000009CC 0000000000779BA4 00000000 00410A9D 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            'BE12641D+353267+29+150+11252+19327+29206+40850+54367+64924+80140+93471+105836+114502+124532+138556+148750+162797+174810+185404+203221+217112+224058+234322+244849+256477+266797+274985+284478+298032+308375+341147'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '8'
'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '105.149'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1965'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Chocolate Bar (Lucky Four, 1962) 1'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Uniques'
'TRCK' (Track number/Position in set)               '8/29'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'reggae', 'ska', 'slovak', 'rocksteady']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.79 dB'
'TXXX:replaygain_track_peak'                        '0.593890'

========================== row from database ==========================
                                              'id'  735772
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/The Uniques - Chocolate Bar (Lucky Four, 1962) 1.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  177
                                           'genre'  set-th-candy
                                        'filesize'  4269701
                                           'mtime'  1621696428
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  The Uniques
                                     'tag_release'  sweets
                                       'tag_title'  Chocolate Bar (Lucky Four, 1962) 1
                                             'bpm'  105.149
                                    'search_title'  '1':9 '1962':7,8 'bar':2 'chocolate':1 'four':5,6 'lucky':3,4
                                   'search_artist'  'the':1 'uniques':2
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  '1':9A '1962':7A,8A 'bar':2A 'candy':19 'chocolate':1A 'country':16 'exotica':14 'four':5A,6A 'jazz':13 'lucky':3A,4A 'oldies':15 'set':17 'sweets':12C 'th':18 'the':10B 'uniques':11B
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-2', '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-3', 'q-drums-3', 'q-syn-1', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'reggae', 'ska', 'slovak', 'rocksteady']
                                        'tag_date'  1965
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696427.7043197  (2021-05-22 17:13:47)
                             'size'  4269701