======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '198'
                                          'artist'  'Mylo'
                                     'text_people'  ''
                                         'release'  'Destroy Rock & Roll'
                                           'title'  'Rikki'
                                           'quals'  "['q-bass-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'House'
                                             'bpm'  '126.0'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'UTE - Great Electronic Music'
'POPM:'                                             POPM(email='', rating=153)
'TALB' (Album/Movie/Show title)                     'Destroy Rock & Roll'
'TBPM' (BPM (beats per minute))                     '126.0'
'TCON' (Content type, a.k.a. Genre)                 'House'
'TDOR' (Original release time)                      '2004'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Rikki'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mylo'
'TRCK' (Track number/Position in set)               '9'
'TXXX:MusicBrainz Album Id'                         '336738a4-342b-4d0f-8d9b-3502e7da8e16'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a066b730-3809-4b39-a091-2297d40b51db'
'TXXX:MusicBrainz TRM Id'                           '91896c63-31e1-4ed3-a234-8160ab79d25f'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'223c8761-b6a7-4a28-83bb-7bdad0cabffa')

========================== row from database ==========================
                                              'id'  1538790
                                            'path'  /data/Music/Other/PrevSet/[2electro1-softer]/Mylo/Rikki.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  198
                                           'genre'  House
                                        'filesize'  4764770
                                           'mtime'  1662800406
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [2electro1 softer] House
                                      'tag_artist'  Mylo
                                     'tag_release'  Destroy Rock & Roll
                                       'tag_title'  Rikki
                                             'bpm'  126.0
                                    'search_title'  'rikki':1
                                   'search_artist'  'mylo':1
                                  'search_release'  'destroy':1 'rock':2 'roll':3
                                     'search_rest'  '2electro1':2,3 'house':6 'prev':7 'prevset':1 'set':8 'softer':4,5
                                    'search_combo'  '2electro1':7,8 'destroy':3C 'house':11 'mylo':2B 'prev':12 'prevset':6 'rikki':1A 'rock':4C 'roll':5C 'set':13 'softer':9,10
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['q-bass-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800405.9975076  (2022-09-10 11:00:05)
                             'size'  4764770