======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '277'
                                          'artist'  'Bubblemath'
                                     'text_people'  ''
                                         'release'  'progsoup 19'
                                           'title'  'Doll Hammer'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['avant garde', 'progressive rock', 'avant prog', 'experimental']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '36'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '103'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::\x00\x00\x00'                                '0'
'COMM::eng'                                         '0'
'COMM:Media Jukebox: Date:\x00\x00\x00'             '36892'
'COMM:Media Jukebox: Intensity:\x00\x00\x00'        '4'
'COMM:Media Jukebox: Peak Level:\x00\x00\x00'       '1'
'COMM:Media Jukebox: Replay Gain:\x00\x00\x00'      '-13.249879999999999'
'COMM:Media Jukebox: Tool Name:\x00\x00\x00'        'Media Center'
'COMM:Media Jukebox: Tool Version:\x00\x00\x00'     '12.0.129'
'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\x001\x001\x007\x002\x003\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x002\x007\x007\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x001\x005\x008\x006\x008\x006\x007\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x001\x001\x007\x002\x003\x008\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x009\x002\x007\x007\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x001\x005\x008\x006\x008\x006\x007\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ö\x0e\x03\x18ðYäM¼\x9e¢à̪ɯ'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xf6\x0e\x03\x18\xf0Y\xe4M\xbc\x9e\xa2\xe0\xcc\xaa\xc9\xaf')
'PRIV:WM/WMCollectionID:ö\x0e\x03\x18ðYäM¼\x9e¢à̪ɯ'  PRIV(owner='WM/WMCollectionID', data=b'\xf6\x0e\x03\x18\xf0Y\xe4M\xbc\x9e\xa2\xe0\xcc\xaa\xc9\xaf')
'PRIV:WM/WMContentID:_\x985ó\x08\x14ïE\x99fX!\x03·éâ'  PRIV(owner='WM/WMContentID', data=b'_\x985\xf3\x08\x14\xefE\x99fX!\x03\xb7\xe9\xe2')
'TALB' (Album/Movie/Show title)                     'progsoup 19'
'TBPM' (BPM (beats per minute))                     '103'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Doll Hammer'
'TKEY' (Initial key)                                '10A'
'TLEN' (Length)                                     '277133'
'TPE1' (Lead performer(s)/Soloist(s))               'Bubblemath'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Sounds Reasonable'
'TRCK' (Track number/Position in set)               '36'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['avant garde', 'progressive rock', 'avant prog', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.75 dB'
'TXXX:replaygain_track_peak'                        '0.438244'
'USLT::eng'                                         '12:00:00 AM'

========================== row from database ==========================
                                              'id'  1409802
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/PROGSOUP/progsoup 19/1093 bubblemath - doll hammer.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  277
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  8882082
                                           'mtime'  1620736736
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy PROGSOUP 1093 bubblemath doll hammer rock cppex progressive;set pl progspace
                                      'tag_artist'  Bubblemath
                                     'tag_release'  progsoup 19
                                       'tag_title'  Doll Hammer
                                             'bpm'  103.0
                                    'search_title'  'doll':1 'hammer':2
                                   'search_artist'  'bubblemath':1
                                  'search_release'  '19':2 'progsoup':1
                                     'search_rest'  '1093':3 'bubblemath':4 'classicprogpsy':1 'cppex':8 'doll':5 'hammer':6 'pl':13 'progressive':9,11 'progsoup':2 'progspace':14 'rock':7 'set':10,12
                                    'search_combo'  '1093':8 '19':5C 'bubblemath':3B,9 'classicprogpsy':6 'cppex':13 'doll':1A,10 'hammer':2A,11 'pl':18 'progressive':14,16 'progsoup':4C,7 'progspace':19 'rock':12 'set':15,17
                                    'tag_tracknum'  36
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['avant garde', 'progressive rock', 'avant prog', 'experimental']
                                        'tag_date'  2001
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620736736.3827171  (2021-05-11 14:38:56)
                             'size'  8882082