======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '158'
                                          'artist'  'Shonen Knife'
                                     'text_people'  ''
                                         'release'  'The Powerpuff Girls: Heroes & Villains'
                                           'title'  "Buttercup (I'm a Super Girl)"
                                           'quals'  "['q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '124.2'
                                             'key'  'C#m'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'SN: 1957-426-458'
'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=0, count=0)
'TALB' (Album/Movie/Show title)                     'The Powerpuff Girls: Heroes & Villains'
'TBPM' (BPM (beats per minute))                     '124.2'
'TIT2' (Title/songname/content description)         "Buttercup (I'm a Super Girl)"
'TKEY' (Initial key)                                'C#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Shonen Knife'
'TRCK' (Track number/Position in set)               '6'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '68be91d7-574c-435e-ae85-073fe42eb1c4'
'TXXX:MusicBrainz TRM Id'                           'c0c724cd-45b6-49c5-8d75-06e0659994b0'
'TXXX:q-bass'                                       '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'cd452e68-7c36-4564-b136-d05fa0225c13')

========================== row from database ==========================
                                              'id'  1538392
                                            'path'  /data/Music/Other/PrevSet/[9amusing]/Shonen Knife - Buttercup (I'm a Super Girl).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  158
                                           'genre'  
                                        'filesize'  2543616
                                           'mtime'  1657675135
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [9amusing]
                                      'tag_artist'  Shonen Knife
                                     'tag_release'  The Powerpuff Girls: Heroes & Villains
                                       'tag_title'  Buttercup (I'm a Super Girl)
                                             'bpm'  124.2
                                    'search_title'  'a':5 'buttercup':1 'girl':7,8 'i':2 'im':4 'm':3 'super':6
                                   'search_artist'  'knife':2 'shonen':1
                                  'search_release'  'girls':3,4 'heroes':5 'powerpuff':2 'the':1 'villains':6
                                     'search_rest'  '9amusing':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '9amusing':18,19 'a':5A 'buttercup':1A 'girl':7A,8A 'girls':13C,14C 'heroes':15C 'i':2A 'im':4A 'knife':10B 'm':3A 'powerpuff':12C 'prev':20 'prevset':17 'set':21 'shonen':9B 'super':6A 'the':11C 'villains':16C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  C#m
                                           'quals'  ['q-bass-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1657675135.4449282  (2022-07-13 03:18:55)
                             'size'  2543616