======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '194'
                                          'artist'  'Wynton Marsalis'
                                     'text_people'  'Jelly Roll Morton'
                                         'release'  'radio jazz 13'
                                           'title'  'King Porter Stomp'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-2', "
 "'Q-OLDST-2', 'Q-SYN-1', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-2', 'q-bass-1', "
 "'Q-CHART-2', 'q-drums-1', 'q-other-4', 'q-piano-3', 'q-vocals-2', "
 "'Q-MIXBEAT-1']")
                                      'lastfmtags'  "['classical', 'jazz', 'instrumental', 'bebop', 'trumpet', 'cool jazz']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-unsorted'
                                             'bpm'  '88.7'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'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\x002\x008\x008\x002\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x000\x002\x000\x009\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x000\x002\x009\x002\x006\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x002\x008\x008\x002\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x000\x002\x000\x009\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x000\x002\x009\x002\x006\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\\´\x9cÿkeº@¸ðv³\x9a¨Äb'  PRIV(owner='WM/WMCollectionGroupID', data=b'\\\xb4\x9c\xffke\xba@\xb8\xf0v\xb3\x9a\xa8\xc4b')
'PRIV:WM/WMCollectionID:\\´\x9cÿkeº@¸ðv³\x9a¨Äb'    PRIV(owner='WM/WMCollectionID', data=b'\\\xb4\x9c\xffke\xba@\xb8\xf0v\xb3\x9a\xa8\xc4b')
'PRIV:WM/WMContentID:\x7f\tâhH³\x99F\x82Á·\x13uMø\x14'  PRIV(owner='WM/WMContentID', data=b'\x7f\t\xe2hH\xb3\x99F\x82\xc1\xb7\x13uM\xf8\x14')
'TALB' (Album/Movie/Show title)                     'radio jazz 13'
'TBPM' (BPM (beats per minute))                     '88.7'
'TCOM' (Composer)                                   'Jelly Roll Morton'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-unsorted'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'King Porter Stomp'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Wynton Marsalis'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Columbia'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classical', 'jazz', 'instrumental', 'bebop', 'trumpet', 'cool jazz']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+1.20 dB'
'TXXX:replaygain_track_peak'                        '0.865848'

========================== row from database ==========================
                                              'id'  1482332
                                            'path'  /data/Music/Bulk/00poprockelectronic/radio jazz 13/Wynton Marsalis - king porter stomp.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  194
                                           'genre'  prerock-jb-jazz-unsorted
                                        'filesize'  7798957
                                           'mtime'  1620541593
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic king porter stomp prerock jb unsorted
                                      'tag_artist'  Wynton Marsalis
                                     'tag_release'  radio jazz 13
                                       'tag_title'  King Porter Stomp
                                             'bpm'  88.7
                                    'search_title'  'king':1 'porter':2 'stomp':3
                                   'search_artist'  'marsalis':2 'wynton':1
                                  'search_release'  'jazz':2 'radio':1
                                     'search_rest'  '00poprockelectronic':1 'jb':6 'king':2 'porter':3 'prerock':5 'stomp':4 'unsorted':7
                                    'search_combo'  '00poprockelectronic':8 'jazz':7C 'jb':13 'king':1A,9 'marsalis':5B 'porter':2A,10 'prerock':12 'radio':6C 'stomp':3A,11 'unsorted':14 'wynton':4B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-3', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-1', 'Q-UNU-1', 'Q-JZFKS-2', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['classical', 'jazz', 'instrumental', 'bebop', 'trumpet', 'cool jazz']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620541593.303827  (2021-05-09 08:26:33)
                             'size'  7798957