======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '36'
                                          'artist'  'Harry and the Potters'
                                     'text_people'  ''
                                         'release'  'Harry and the Potters'
                                           'title'  'My Teacher Is a Werewolf'
                                           'quals'  "['q-bass-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '112.0'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Harry and the Potters'
'TBPM' (BPM (beats per minute))                     '112.0'
'TIT2' (Title/songname/content description)         'My Teacher Is a Werewolf'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Harry and the Potters'
'TRCK' (Track number/Position in set)               '14'
'TXXX:MusicBrainz Album Id'                         'e95846c5-c0f3-4589-b8f6-952d3c50a21e'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'e467bdd6-d977-473c-b721-7cc2785933bc'
'TXXX:MusicBrainz TRM Id'                           'e2903a4c-94e3-4982-a711-5b332d4c9489'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f6127ba2-d29d-49f5-bd91-8a3f598a142f')

========================== row from database ==========================
                                              'id'  1538159
                                            'path'  /data/Music/Other/PrevSet/[8ohdear]/Harry and the Potters/My Teacher Is a Werewolf.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  36
                                           'genre'  
                                        'filesize'  731784
                                           'mtime'  1662800484
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [8ohdear]
                                      'tag_artist'  Harry and the Potters
                                     'tag_release'  Harry and the Potters
                                       'tag_title'  My Teacher Is a Werewolf
                                             'bpm'  112.0
                                    'search_title'  'a':4 'is':3 'my':1 'teacher':2 'werewolf':5
                                   'search_artist'  'and':2 'harry':1 'potters':4 'the':3
                                  'search_release'  'and':2 'harry':1 'potters':4 'the':3
                                     'search_rest'  '8ohdear':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '8ohdear':15,16 'a':4A 'and':7B,11C 'harry':6B,10C 'is':3A 'my':1A 'potters':9B,13C 'prev':17 'prevset':14 'set':18 'teacher':2A 'the':8B,12C 'werewolf':5A
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['q-bass-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800483.7469978  (2022-09-10 11:01:23)
                             'size'  731784