======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '241'
                                          'artist'  '"Weird Al" Yankovic'
                                     'text_people'  ''
                                         'release'  'Bad Hair Day'
                                           'title'  'The Night Santa Went Crazy'
                                           'quals'  "['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '122.5'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=153)
'PRIV:www.mexp.dk:\x01\x08\x00\x00\x00\x00amusing'  PRIV(owner='www.mexp.dk', data=b'\x01\x08\x00\x00\x00\x00amusing')
'TALB' (Album/Movie/Show title)                     'Bad Hair Day'
'TBPM' (BPM (beats per minute))                     '122.5'
'TIT2' (Title/songname/content description)         'The Night Santa Went Crazy'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               '"Weird Al" Yankovic'
'TRCK' (Track number/Position in set)               '12'
'TXXX:MusicBrainz Album Id'                         'c4eac0bf-b6b6-4a7c-a151-db78c7426899'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7746d775-9550-4360-b8d5-c37bd448ce01'
'TXXX:MusicBrainz TRM Id'                           '949d9194-7e29-4fe0-846d-5930773fd839'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'4862802a-4f34-43ac-acdf-8c35d9091c81')

========================== row from database ==========================
                                              'id'  1538394
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Weird Al Yankovic/The Night Santa Went Crazy.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  241
                                           'genre'  
                                        'filesize'  7725056
                                           'mtime'  1662800567
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing]
                                      'tag_artist'  "Weird Al" Yankovic
                                     'tag_release'  Bad Hair Day
                                       'tag_title'  The Night Santa Went Crazy
                                             'bpm'  122.5
                                    'search_title'  'crazy':5 'night':2 'santa':3 'the':1 'went':4
                                   'search_artist'  'al':2 'weird':1 'yankovic':3
                                  'search_release'  'bad':1 'day':3 'hair':2
                                     'search_rest'  '9amusing':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '9amusing':13,14 'al':7B 'bad':9C 'crazy':5A 'day':11C 'hair':10C 'night':2A 'prev':15 'prevset':12 'santa':3A 'set':16 'the':1A 'weird':6B 'went':4A 'yankovic':8B
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  5B
                                           'quals'  ['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800566.5083263  (2022-09-10 11:02:46)
                             'size'  7725056