======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '142'
                                          'artist'  'Chocolate Moose'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'Chocolate Moose Theme'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-OLDST-2', 'q-syn-1', "
 "'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-4', "
 "'q-other-3', 'q-piano-1', 'q-vocals-2', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['garage rock', 'psychedelic', 'need to rate', 'rock', 'psychedelic rock']"
                                     'discogstags'  "['garage rock', 'psychedelic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '18'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '96.255'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['0',
 ' 000003A4 000001F4 000015BB 00000C70 000034A7 0001165E 00007788 000057BE '
 '00016BFA 00003D53',
 ' 00000000 00000210 00000708 00000000005F96E8 00000000 0033F6DC 00000000 '
 '00000000 00000000 00000000 00000000 00000000']
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunes_CDDB_1:eng'                            '1209AD12+185937+18+150+9445+21462+31576+43299+53418+63698+73341+82354+95417+104478+111876+119517+128984+139638+148847+164992+173632'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '14'
'PRIV:AverageLevel:{\x0c\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x0c\x00\x00')
'PRIV:PeakValue:!u\x00\x00'                         PRIV(owner='PeakValue', data=b'!u\x00\x00')
'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '96.255'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Chocolate Moose Theme'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Chocolate Moose'
'TRCK' (Track number/Position in set)               '14/18'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['garage rock', 'psychedelic rock', 'rock']
'TXXX:lastfmtags'                                   ['garage rock', 'psychedelic', 'need to rate', 'rock', 'psychedelic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.55 dB'
'TXXX:replaygain_track_peak'                        '0.769896'

========================== row from database ==========================
                                              'id'  736016
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Chocolate Moose - Chocolate Moose Theme.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  142
                                           'genre'  set-th-candy
                                        'filesize'  3412676
                                           'mtime'  1620343111
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  Chocolate Moose
                                     'tag_release'  sweets
                                       'tag_title'  Chocolate Moose Theme
                                             'bpm'  96.255
                                    'search_title'  'chocolate':1 'moose':2 'theme':3
                                   'search_artist'  'chocolate':1 'moose':2
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  'candy':13 'chocolate':1A,4B 'country':10 'exotica':8 'jazz':7 'moose':2A,5B 'oldies':9 'set':11 'sweets':6C 'th':12 'theme':3A
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['garage rock', 'psychedelic', 'need to rate', 'rock', 'psychedelic rock']
                                        'tag_date'  
                                     'discogstags'  ['garage rock', 'psychedelic rock', 'rock']

============================== file details ==============================
                                           'mtime'  1620343110.6674464  (2021-05-07 01:18:30)
                             'size'  3412676