======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '285'
                                          'artist'  'Toktok'
                                     'text_people'  ''
                                         'release'  'Bang Bang (feat. Nena)'
                                           'title'  'Bang Bang (maxi mix)'
                                           'quals'  "['q-bass-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'House'
                                             'bpm'  '139.0'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         'PDJ'
'POPM:'                                             POPM(email='', rating=102)
'PRIV:www.mexp.dk:\x01\x08\x00\x00\x00\x00electro'  PRIV(owner='www.mexp.dk', data=b'\x01\x08\x00\x00\x00\x00electro')
'TALB' (Album/Movie/Show title)                     'Bang Bang (feat. Nena)'
'TBPM' (BPM (beats per minute))                     '139.0'
'TCON' (Content type, a.k.a. Genre)                 'House'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Bang Bang (maxi mix)'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Toktok'
'TRCK' (Track number/Position in set)               '2'
'TXXX:MusicBrainz Album Id'                         '35c096bd-a87d-44af-8b7a-a676f201f397'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'single'
'TXXX:MusicBrainz Artist Id'                        '88c97db7-5fd7-4837-b89f-3c5d95a0774e'
'TXXX:MusicBrainz TRM Id'                           '9b0f178c-57b4-4e8a-992a-9b1896e8fd65'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6deb2a4f-650e-4a9a-b9e6-a884f4170a85')

========================== row from database ==========================
                                              'id'  1538402
                                            'path'  /data/Music/Other/PrevSet/[1electro-harder]/Toktok/Bang Bang (maxi mix).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  285
                                           'genre'  House
                                        'filesize'  6856878
                                           'mtime'  1662800365
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [1electro harder] House
                                      'tag_artist'  Toktok
                                     'tag_release'  Bang Bang (feat. Nena)
                                       'tag_title'  Bang Bang (maxi mix)
                                             'bpm'  139.0
                                    'search_title'  'bang':1 'maxi':2,3 'mix':4,5
                                   'search_artist'  'toktok':1
                                  'search_release'  'bang':1 'feat':2,3 'nena':4,5
                                     'search_rest'  '1electro':2,3 'harder':4,5 'house':6 'prev':7 'prevset':1 'set':8
                                    'search_combo'  '1electro':13,14 'bang':1A,7C 'feat':8C,9C 'harder':15,16 'house':17 'maxi':2A,3A 'mix':4A,5A 'nena':10C,11C 'prev':18 'prevset':12 'set':19 'toktok':6B
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['q-bass-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800364.7428393  (2022-09-10 10:59:24)
                             'size'  6856878