======================== unified (from filesystem) ========================
                                         'bitrate'  '176.271'
                                        'duration'  '186'
                                          'artist'  'Annie'
                                     'text_people'  ''
                                         'release'  'Anniemal'
                                           'title'  'Heartbeat'
                                           'quals'  "['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'Pop'
                                             'bpm'  '128.0'
                                             'key'  'B m'  (10A)
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'More music by way of Eterna'
'POPM:'                                             POPM(email='', rating=153)
'POPM:\x01ÿþ3'                                      POPM(email='\x01ÿþ3', rating=0, count=0)
'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 \x007\x001\x003\x006\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x007\x000\x003\x002\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x002\x003\x008\x003\x004\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x001\x003\x006\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x007\x000\x003\x002\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x002\x003\x008\x003\x004\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ÜD>^«ÌÜD\x8cvâß\x95@~Ð'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xdcD>^\xab\xcc\xdcD\x8cv\xe2\xdf\x95@~\xd0')
'PRIV:WM/WMCollectionID:ÜD>^«ÌÜD\x8cvâß\x95@~Ð'     PRIV(owner='WM/WMCollectionID', data=b'\xdcD>^\xab\xcc\xdcD\x8cv\xe2\xdf\x95@~\xd0')
'PRIV:WM/WMContentID:Ô\x0c×25\x01ðL¯\x04O\x8b#\x10n\x10'  PRIV(owner='WM/WMContentID', data=b'\xd4\x0c\xd725\x01\xf0L\xaf\x04O\x8b#\x10n\x10')
'TALB' (Album/Movie/Show title)                     'Anniemal'
'TBPM' (BPM (beats per minute))                     '128.0'
'TCON' (Content type, a.k.a. Genre)                 'Pop'
'TDRC' (Recording time)                             '2004'
'TENC' (Encoded by)                                 'LAME v3.90.3'
'TIT2' (Title/songname/content description)         'Heartbeat'
'TKEY' (Initial key)                                'B m'
'TPE1' (Lead performer(s)/Soloist(s))               'Annie'
'TPE2' (Band/orchestra/accompaniment)               'Annie'
'TPUB' (Publisher)                                  'Vice/Atlantic'
'TRCK' (Track number/Position in set)               '5'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'

========================== row from database ==========================
                                              'id'  1538164
                                            'path'  /data/Music/Other/PrevSet/[2electro1-softer]/Annie/Heartbeat.mp3
                                         'working'  None
                                         'bitrate'  176
                                    'duration_sec'  186
                                           'genre'  Pop
                                        'filesize'  4111657
                                           'mtime'  1657676797
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [2electro1 softer] Pop
                                      'tag_artist'  Annie
                                     'tag_release'  Anniemal
                                       'tag_title'  Heartbeat
                                             'bpm'  128.0
                                    'search_title'  'heartbeat':1
                                   'search_artist'  'annie':1
                                  'search_release'  'anniemal':1
                                     'search_rest'  '2electro1':2,3 'pop':6 'prev':7 'prevset':1 'set':8 'softer':4,5
                                    'search_combo'  '2electro1':5,6 'annie':2B 'anniemal':3C 'heartbeat':1A 'pop':9 'prev':10 'prevset':4 'set':11 'softer':7,8
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  B m
                                           'quals'  ['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-1']
                                      'lastfmtags'  []
                                        'tag_date'  2004
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1657676796.9115005  (2022-07-13 03:46:36)
                             'size'  4111657