======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '304'
                                          'artist'  'Ugress'
                                     'text_people'  ''
                                         'release'  'Resound'
                                           'title'  'Loungemeister'
                                           'quals'  "['q-bass-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'Electronic'
                                             'bpm'  '110.0'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'POPM:'                                             POPM(email='', rating=204)
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Resound'
'TBPM' (BPM (beats per minute))                     '110.0'
'TCON' (Content type, a.k.a. Genre)                 'Electronic'
'TIT2' (Title/songname/content description)         'Loungemeister'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ugress'
'TRCK' (Track number/Position in set)               '6'
'TXXX:MusicBrainz Album Id'                         'ef4db55b-e485-4279-bcbf-cd624db295dd'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'cf1e3271-7518-4330-85be-7fc9c209543e'
'TXXX:MusicBrainz TRM Id'                           '1706984b-589a-4a6c-945d-70c2a2ee3a40'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'20fd663c-59f6-4914-b7b6-655712b5b79d')

========================== row from database ==========================
                                              'id'  1538158
                                            'path'  /data/Music/Other/PrevSet/[2electro1-softer]/Ugress/Loungemeister (Resound).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  304
                                           'genre'  Electronic
                                        'filesize'  6082734
                                           'mtime'  1662800387
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [2electro1 softer] (Resound) Electronic
                                      'tag_artist'  Ugress
                                     'tag_release'  Resound
                                       'tag_title'  Loungemeister
                                             'bpm'  110.0
                                    'search_title'  'loungemeister':1
                                   'search_artist'  'ugress':1
                                  'search_release'  'resound':1
                                     'search_rest'  '2electro1':2,3 'electronic':8 'prev':9 'prevset':1 'resound':6,7 'set':10 'softer':4,5
                                    'search_combo'  '2electro1':5,6 'electronic':11 'loungemeister':1A 'prev':12 'prevset':4 'resound':3C,9,10 'set':13 'softer':7,8 'ugress':2B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  11A
                                           'quals'  ['q-bass-4', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1662800386.5261362  (2022-09-10 10:59:46)
                             'size'  6082734