======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '269'
                                          'artist'  'William S. Burroughs'
                                     'text_people'  ''
                                         'release'  'Spare Ass Annie'
                                           'title'  'Spare Ass Annie'
                                           'quals'  "['q-bass-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '123.0'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'Made with RealJukebox (tm)'
'POPM:'                                             POPM(email='', rating=153)
'TALB' (Album/Movie/Show title)                     'Spare Ass Annie'
'TBPM' (BPM (beats per minute))                     '123.0'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Spare Ass Annie'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'William S. Burroughs'
'TRCK' (Track number/Position in set)               '2'
'TXXX:MusicBrainz Album Id'                         '46ca3107-78c4-4ade-bbc9-2c43e6af1208'
'TXXX:MusicBrainz Artist Id'                        'f150ed27-bee7-49d8-a226-31fef88c29b3'
'TXXX:MusicBrainz TRM Id'                           'e6155d9b-d5ea-4bdc-b305-3f83a4ee6144'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'181e3a29-a323-478d-bfee-3a88f2be70b0')

========================== row from database ==========================
                                              'id'  1538520
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/William S Burroughs - Spare Ass Annie.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  269
                                           'genre'  
                                        'filesize'  3240110
                                           'mtime'  1662800603
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing]
                                      'tag_artist'  William S. Burroughs
                                     'tag_release'  Spare Ass Annie
                                       'tag_title'  Spare Ass Annie
                                             'bpm'  123.0
                                    'search_title'  'annie':3 'ass':2 'spare':1
                                   'search_artist'  'burroughs':4 's':2,3 'william':1
                                  'search_release'  'annie':3 'ass':2 'spare':1
                                     'search_rest'  '9amusing':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '9amusing':12,13 'annie':3A,10C 'ass':2A,9C 'burroughs':7B 'prev':14 'prevset':11 's':5B,6B 'set':15 'spare':1A,8C 'william':4B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['q-bass-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800602.855153  (2022-09-10 11:03:22)
                             'size'  3240110