======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '208'
                                          'artist'  'Peggy Lee & Bing Crosby'
                                     'text_people'  ''
                                         'release'  'sweets'
                                           'title'  'Sunshine Cake'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '20'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '129.813'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['0',
 ' 000001ED 000001ED 000027CA 000027CA 00003805 00003805 00005868 00005868 '
 '00020C97 00020C97',
 ' 00000000 00000210 000007B0 00000000008C40C0 00000000 004C45B7 00000000 '
 '00000000 00000000 00000000 00000000 00000000']
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunes_CDDB_1:eng'                            '220BA114+223462+20+150+5388+15731+29150+36588+45348+56990+67073+82446+98121+113085+123841+132568+143309+158941+168958+180444+191817+201223+211260'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '14'
'PRIV:AverageLevel:{\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'{\r\x00\x00')
'PRIV:PeakValue:¡X\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1X\x00\x00')
'TALB' (Album/Movie/Show title)                     'sweets'
'TBPM' (BPM (beats per minute))                     '129.813'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TENC' (Encoded by)                                 'iTunes 8.0.2'
'TIT2' (Title/songname/content description)         'Sunshine Cake'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Peggy Lee & Bing Crosby'
'TRCK' (Track number/Position in set)               '14/20'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                        '+2.01 dB'
'TXXX:replaygain_track_peak'                        '0.691045'

========================== row from database ==========================
                                              'id'  735809
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/Peggy Lee & Bing Crosby - Sunshine Cake.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  208
                                           'genre'  set-th-candy
                                        'filesize'  5005728
                                           'mtime'  1620343122
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country set th candy
                                      'tag_artist'  Peggy Lee & Bing Crosby
                                     'tag_release'  sweets
                                       'tag_title'  Sunshine Cake
                                             'bpm'  129.813
                                    'search_title'  'cake':2 'sunshine':1
                                   'search_artist'  'bing':3 'crosby':4 'lee':2 'peggy':1
                                  'search_release'  'sweets':1
                                     'search_rest'  'candy':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'set':5 'th':6
                                    'search_combo'  'bing':5B 'cake':2A 'candy':14 'country':11 'crosby':6B 'exotica':9 'jazz':8 'lee':4B 'oldies':10 'peggy':3B 'set':12 'sunshine':1A 'sweets':7C 'th':13
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-1', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343122.1297712  (2021-05-07 01:18:42)
                             'size'  5005728