======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '196'
                                          'artist'  'Die Prinzen'
                                     'text_people'  ''
                                         'release'  'Alles nur geklaut'
                                           'title'  'Ich kann nicht rappen'
                                           'quals'  "['q-bass-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Blues'
                                             'bpm'  '145.5'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'http://www.mp3.com/ohmygoth'
'TALB' (Album/Movie/Show title)                     'Alles nur geklaut'
'TBPM' (BPM (beats per minute))                     '145.5'
'TCON' (Content type, a.k.a. Genre)                 'Blues'
'TIT2' (Title/songname/content description)         'Ich kann nicht rappen'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Die Prinzen'
'TRCK' (Track number/Position in set)               '11'
'TXXX:MusicBrainz Album Id'                         '2bb00442-deae-4dad-a4f5-aa268027c742'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'a7ebbbb1-d29f-4e4a-8657-e687efc72ac5'
'TXXX:MusicBrainz TRM Id'                           '32f91872-f019-469d-bef3-02e13de6daab'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f881bf3a-475a-4477-9b19-9f3f7f93e76f')

========================== row from database ==========================
                                              'id'  1538584
                                            'path'  /data/Music/Other/PrevSet/[8ohdear]/Voltaire/The Sexy Data Tango.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  196
                                           'genre'  Blues
                                        'filesize'  3148658
                                           'mtime'  1662800510
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [8ohdear] Voltaire The Sexy Data Tango Blues
                                      'tag_artist'  Die Prinzen
                                     'tag_release'  Alles nur geklaut
                                       'tag_title'  Ich kann nicht rappen
                                             'bpm'  145.5
                                    'search_title'  'ich':1 'kann':2 'nicht':3 'rappen':4
                                   'search_artist'  'die':1 'prinzen':2
                                  'search_release'  'alles':1 'geklaut':3 'nur':2
                                     'search_rest'  '8ohdear':2,3 'blues':9 'data':7 'prev':10 'prevset':1 'set':11 'sexy':6 'tango':8 'the':5 'voltaire':4
                                    'search_combo'  '8ohdear':11,12 'alles':7C 'blues':18 'data':16 'die':5B 'geklaut':9C 'ich':1A 'kann':2A 'nicht':3A 'nur':8C 'prev':19 'prevset':10 'prinzen':6B 'rappen':4A 'set':20 'sexy':15 'tango':17 'the':14 'voltaire':13
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['q-bass-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800510.106147  (2022-09-10 11:01:50)
                             'size'  3148658