======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '294'
                                          'artist'  'The Dresden Dolls'
                                     'text_people'  ''
                                         'release'  'A Is for Accident'
                                           'title'  'Thirty Whacks'
                                           'quals'  "['q-bass-1', 'q-drums-2', 'q-other-1', 'q-piano-4', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Other'
                                             'bpm'  '101.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=153)
'TALB' (Album/Movie/Show title)                     'A Is for Accident'
'TBPM' (BPM (beats per minute))                     '101.1'
'TCON' (Content type, a.k.a. Genre)                 'Other'
'TIT2' (Title/songname/content description)         'Thirty Whacks'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dresden Dolls'
'TRCK' (Track number/Position in set)               '7'
'TXXX:MusicBrainz Album Id'                         '59d19d8a-34a5-4bce-ab48-1554770aad6c'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'live'
'TXXX:MusicBrainz Artist Id'                        '107c7983-0728-46ea-8550-77e698adf690'
'TXXX:MusicBrainz TRM Id'                           '57bc26da-d935-4619-a3df-26a971b09db8'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '4'
'TXXX:q-vocals'                                     '3'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'5408adfb-a3b3-4582-b310-70a0ac3cc52f')

========================== row from database ==========================
                                              'id'  1538619
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Dresden Dolls/Thirty Whacks.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  294
                                           'genre'  Other
                                        'filesize'  7059833
                                           'mtime'  1662800218
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] Other
                                      'tag_artist'  The Dresden Dolls
                                     'tag_release'  A Is for Accident
                                       'tag_title'  Thirty Whacks
                                             'bpm'  101.1
                                    'search_title'  'thirty':1 'whacks':2
                                   'search_artist'  'dolls':3 'dresden':2 'the':1
                                  'search_release'  'a':1 'accident':4 'for':3 'is':2
                                     'search_rest'  '0yay1':2,3 'other':4 'prev':5 'prevset':1 'set':6
                                    'search_combo'  '0yay1':11,12 'a':6C 'accident':9C 'dolls':5B 'dresden':4B 'for':8C 'is':7C 'other':13 'prev':14 'prevset':10 'set':15 'the':3B 'thirty':1A 'whacks':2A
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['q-bass-1', 'q-drums-2', 'q-other-1', 'q-piano-4', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800217.707586  (2022-09-10 10:56:57)
                             'size'  7059833