======================== unified (from filesystem) ========================
                                         'bitrate'  '184.165'
                                        'duration'  '217'
                                          'artist'  'Timbuk 3'
                                     'text_people'  ''
                                         'release'  'Eden Alley'
                                           'title'  'A Sinful Life'
                                           'quals'  "['q-bass-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '140.7'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=204)
'TALB' (Album/Movie/Show title)                     'Eden Alley'
'TBPM' (BPM (beats per minute))                     '140.7'
'TIT2' (Title/songname/content description)         'A Sinful Life'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Timbuk 3'
'TRCK' (Track number/Position in set)               '10'
'TXXX:MusicBrainz Album Id'                         'c8c44132-7964-4e57-9620-a0538e2dc57e'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '6de4e992-3f69-4616-8c08-74cff57b39b3'
'TXXX:MusicBrainz TRM Id'                           'e53ad125-90a1-4984-9bdc-da6fd3e5b637'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'9c912625-0960-46ee-8a44-e9e0852e9602')

========================== row from database ==========================
                                              'id'  1538811
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Timbuk 3/A Sinful Life.mp3
                                         'working'  None
                                         'bitrate'  184
                                    'duration_sec'  217
                                           'genre'  
                                        'filesize'  5013838
                                           'mtime'  1662800267
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1]
                                      'tag_artist'  Timbuk 3
                                     'tag_release'  Eden Alley
                                       'tag_title'  A Sinful Life
                                             'bpm'  140.7
                                    'search_title'  'a':1 'life':3 'sinful':2
                                   'search_artist'  '3':2 'timbuk':1
                                  'search_release'  'alley':2 'eden':1
                                     'search_rest'  '0yay1':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '0yay1':9,10 '3':5B 'a':1A 'alley':7C 'eden':6C 'life':3A 'prev':11 'prevset':8 'set':12 'sinful':2A 'timbuk':4B
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800266.6420057  (2022-09-10 10:57:46)
                             'size'  5013838