======================== unified (from filesystem) ========================
                                         'bitrate'  '210.316'
                                        'duration'  '140'
                                          'artist'  'Calvin Harris'
                                     'text_people'  ''
                                         'release'  'Ready For The Weekend'
                                           'title'  'Burns Night'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['dance', 'electronica', 'electro', 'electronic', 'disco']"
                                     'discogstags'  "['electronic', 'house', 'electro']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '14'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '120.6'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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 \x001\x006\x003\x004\x001\x009\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x001\x008\x006\x000\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x007\x007\x003\x009\x006\x002\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x006\x003\x004\x001\x009\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x001\x008\x006\x000\x008\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x007\x007\x003\x009\x006\x002\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:4"½Û©îÓM³s2\r´]D,'     PRIV(owner='WM/WMCollectionGroupID', data=b'4"\xbd\xdb\xa9\xee\xd3M\xb3s2\r\xb4]D,')
'PRIV:WM/WMCollectionID:4"½Û©îÓM³s2\r´]D,'          PRIV(owner='WM/WMCollectionID', data=b'4"\xbd\xdb\xa9\xee\xd3M\xb3s2\r\xb4]D,')
'PRIV:WM/WMContentID:B2\x95\x8fogÕE½ËC