======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '174'
                                          'artist'  'Groovy Goolies'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'Monster Cookbook'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-1', "
 "'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['bubblegum', 'kidcore', 'bubb', 'classic bubblegum', 'insane']"
                                     'discogstags'  "['house', 'techno', 'acid', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '21'
                                      'tracktotal'  '25'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '145.267'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 00000D18 00000D18 00008FB5 00008FB5 00011BC6 00011BC6 00007D04 00007D04 '
 '0001EA00 0001EA00')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A98 0000000000754D58 00000000 003FC9CC 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '7A128119+355429+25+150+11706+21171+34655+48698+59830+116134+128075+137968+139718+154506+168129+177283+186648+195929+205647+228921+239035+254400+267426+282562+295636+308153+320388+335346'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '21'
'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Monster Cookbook'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Groovy Goolies'
'TRCK' (Track number/Position in set)               '21/25'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['house', 'techno', 'acid', 'electronic']
'TXXX:lastfmtags'                                   ['bubblegum', 'kidcore', 'bubb', 'classic bubblegum', 'insane']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.345903'

========================== row from database ==========================
                                              'id'  735979
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Groovy Goolies - Monster Cookbook.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  174
                                           'genre'  set-th-candy
                                        'filesize'  4187573
                                           'mtime'  1647276923
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  Groovy Goolies
                                     'tag_release'  sweets
                                       'tag_title'  Monster Cookbook
                                             'bpm'  145.267
                                    'search_title'  'cookbook':2 'monster':1
                                   'search_artist'  'goolies':2 'groovy':1
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  'candy':12 'cookbook':2A 'country':9 'exotica':7 'goolies':4B 'groovy':3B 'jazz':6 'monster':1A 'oldies':8 'set':10 'sweets':5C 'th':11
                                    'tag_tracknum'  21
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['bubblegum', 'kidcore', 'bubb', 'classic bubblegum', 'insane']
                                        'tag_date'  
                                     'discogstags'  ['house', 'techno', 'acid', 'electronic']

============================== file details ==============================
                                           'mtime'  1647276922.6359217  (2022-03-14 17:55:22)
                             'size'  4187573