======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '247'
                                          'artist'  'Gunther'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ding Dong Song (You Touch My Tralala)'
                                           'quals'  "['q-bass-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '131.9'
                                             'key'  'B m'  (10A)
                                        'acoustid'  ''
rest: ''

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

'POPM:\x01ÿþ0'                                      POPM(email='\x01ÿþ0', rating=0, count=0)
'PRIV:www.mexp.dk:\x01\x06\x00\x00\x00\x003star'    PRIV(owner='www.mexp.dk', data=b'\x01\x06\x00\x00\x00\x003star')
'TBPM' (BPM (beats per minute))                     '131.9'
'TIT2' (Title/songname/content description)         'Ding Dong Song (You Touch My Tralala)'
'TKEY' (Initial key)                                'B m'
'TPE1' (Lead performer(s)/Soloist(s))               'Gunther'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEADoVMoSSOYLshguUgLFaZrBaA14Xgw+SRmV4D8tb5fbM0gvPDIbG04Y4AFQY8iIiAAf2ziD8SHhA7gAHUVeWEGoWx3+ES+ZyAAZUDnAm8IIQXCmREyrnHgvmD6dq2l8VHRq7q7YKPwoSv3hizfL9Y3iS0X4PbgeLkU58N+lfbRYeu1OD2YPu6qjDJJ676gGU='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'

========================== row from database ==========================
                                              'id'  1538842
                                            'path'  /data/Music/Other/PrevSet/[8ohdear]/Gunther/Ding Dong Song.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  247
                                           'genre'  
                                        'filesize'  5974628
                                           'mtime'  1657684249
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [8ohdear]
                                      'tag_artist'  Gunther
                                     'tag_release'  None
                                       'tag_title'  Ding Dong Song (You Touch My Tralala)
                                             'bpm'  131.9
                                    'search_title'  'ding':1 'dong':2 'my':7 'song':3 'touch':6 'tralala':8,9 'you':4,5
                                   'search_artist'  'gunther':1
                                  'search_release'  
                                     'search_rest'  '8ohdear':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '8ohdear':12,13 'ding':1A 'dong':2A 'gunther':10B 'my':7A 'prev':14 'prevset':11 'set':15 'song':3A 'touch':6A 'tralala':8A,9A 'you':4A,5A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  B m
                                           'quals'  ['q-bass-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1657684248.6808536  (2022-07-13 05:50:48)
                             'size'  5974628