======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '168'
                                          'artist'  'Weird Al Yankovic'
                                     'text_people'  ''
                                         'release'  'Dare To Be Stupid'
                                           'title'  'Girls Just Want To Have Lunch'
                                           'quals'  "['q-bass-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '123.8'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=102)
'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)                     'Dare To Be Stupid'
'TBPM' (BPM (beats per minute))                     '123.8'
'TIT2' (Title/songname/content description)         'Girls Just Want To Have Lunch'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Weird Al Yankovic'
'TRCK' (Track number/Position in set)               '8'
'TXXX:MusicBrainz Album Id'                         '5aad902e-1fb3-4c5a-a510-0113e110b294'
'TXXX:MusicBrainz Artist Id'                        '7746d775-9550-4360-b8d5-c37bd448ce01'
'TXXX:MusicBrainz TRM Id'                           '50f96801-58bb-4352-bdf3-868f7d06e6cf'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'21107685-0d3f-4e0b-8d2e-fafa2fac1291\x00')

========================== row from database ==========================
                                              'id'  1538289
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Weird Al Yankovic/Girls Just Want to Have Lunch.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  168
                                           'genre'  
                                        'filesize'  3375104
                                           'mtime'  1662800533
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing] to
                                      'tag_artist'  Weird Al Yankovic
                                     'tag_release'  Dare To Be Stupid
                                       'tag_title'  Girls Just Want To Have Lunch
                                             'bpm'  123.8
                                    'search_title'  'girls':1 'have':5 'just':2 'lunch':6 'to':4 'want':3
                                   'search_artist'  'al':2 'weird':1 'yankovic':3
                                  'search_release'  'be':3 'dare':1 'stupid':4 'to':2
                                     'search_rest'  '9amusing':2,3 'prev':5 'prevset':1 'set':6 'to':4
                                    'search_combo'  '9amusing':15,16 'al':8B 'be':12C 'dare':10C 'girls':1A 'have':5A 'just':2A 'lunch':6A 'prev':18 'prevset':14 'set':19 'stupid':13C 'to':4A,11C,17 'want':3A 'weird':7B 'yankovic':9B
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['q-bass-3', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800532.7614157  (2022-09-10 11:02:12)
                             'size'  3375104