======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '277'
                                          'artist'  'Bella Morte'
                                     'text_people'  ''
                                         'release'  'non-album tracks'
                                           'title'  'Theme From Titanic'
                                           'quals'  "['q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '124.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=153)
'PRIV:www.mexp.dk:\x01\x0b\x00\x00\x00\x00good stuff'  PRIV(owner='www.mexp.dk', data=b'\x01\x0b\x00\x00\x00\x00good stuff')
'TALB' (Album/Movie/Show title)                     'non-album tracks'
'TBPM' (BPM (beats per minute))                     '124.0'
'TIT2' (Title/songname/content description)         'Theme From Titanic'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bella Morte'
'TRCK' (Track number/Position in set)               '1'
'TXXX:MusicBrainz Album Id'                         'e5cd52c9-8379-4d8c-bad5-0c5717bd3e5d'
'TXXX:MusicBrainz Artist Id'                        '686dffc5-e13c-4b14-b2b7-097cbef040f0'
'TXXX:MusicBrainz TRM Id'                           '3f0f35c8-e7d3-42ac-9e46-3185d43fd96c'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'f5a36f8b-e068-4f13-9d85-d7e7f754a00d')

========================== row from database ==========================
                                              'id'  1538062
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/zUnsorted/Bella Morte - Theme From Titanic.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  277
                                           'genre'  
                                        'filesize'  4448430
                                           'mtime'  1662800282
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1] zUnsorted
                                      'tag_artist'  Bella Morte
                                     'tag_release'  non-album tracks
                                       'tag_title'  Theme From Titanic
                                             'bpm'  124.0
                                    'search_title'  'from':2 'theme':1 'titanic':3
                                   'search_artist'  'bella':1 'morte':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4
                                     'search_rest'  '0yay1':2,3 'prev':5 'prevset':1 'set':6 'unsorted':8 'z':7 'zunsorted':4
                                    'search_combo'  '0yay1':11,12 'album':7C 'bella':4B 'from':2A 'morte':5B 'non':6C 'nonalbum':8C 'prev':14 'prevset':10 'set':15 'theme':1A 'titanic':3A 'tracks':9C 'unsorted':17 'z':16 'zunsorted':13
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['q-bass-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800282.025509  (2022-09-10 10:58:02)
                             'size'  4448430