======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '120'
                                          'artist'  'Stereo Total'
                                     'text_people'  ''
                                         'release'  'My Melody'
                                           'title'  'Vilaines filles, mauvais garçons'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'german', 'electronic', 'pop', 'french']"
                                     'discogstags'  "['electronic', 'synth-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '16'
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-pop'
                                             'bpm'  '87'
                                             'key'  '11B'
                                        'acoustid'  '9e526a4f-03f7-45e5-ac80-e823ccefd582'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:AverageLevel:J-\x00\x00'                      PRIV(owner='AverageLevel', data=b'J-\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x003\x002\x002\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x003\x002\x000\x006\x007\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x002\x009\x004\x006\x009\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x003\x002\x002\x007\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x003\x002\x000\x006\x007\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x002\x009\x004\x006\x009\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:5\x90\x86\x9b\x8c<\x9dJ·6k;\x16\x0ft\x16'  PRIV(owner='WM/WMCollectionGroupID', data=b'5\x90\x86\x9b\x8c<\x9dJ\xb76k;\x16\x0ft\x16')
'PRIV:WM/WMCollectionID:5\x90\x86\x9b\x8c<\x9dJ·6k;\x16\x0ft\x16'  PRIV(owner='WM/WMCollectionID', data=b'5\x90\x86\x9b\x8c<\x9dJ\xb76k;\x16\x0ft\x16')
'PRIV:WM/WMContentID:È\x82g