======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '223'
                                          'artist'  'Darkest Hour'
                                     'text_people'  ''
                                         'release'  'Undoing Ruin Disc 1'
                                           'title'  'Sound the Surrender'
                                           'quals'  ("['Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '119'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=255, count=0)
'PRIV:AverageLevel:{\x15\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x15\x00\x00')
'PRIV:PeakValue:¡\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xa1\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 \x007\x007\x009\x005\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x003\x006\x006\x000\x006\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x008\x001\x007\x001\x008\x008\x000\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x007\x009\x005\x003\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x003\x006\x006\x000\x006\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x008\x001\x007\x001\x008\x008\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x84À;ã¾²õM·¶\x91E\x8e©e\x11'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x84\xc0;\xe3\xbe\xb2\xf5M\xb7\xb6\x91E\x8e\xa9e\x11')
'PRIV:WM/WMCollectionID:\x84À;ã¾²õM·¶\x91E\x8e©e\x11'  PRIV(owner='WM/WMCollectionID', data=b'\x84\xc0;\xe3\xbe\xb2\xf5M\xb7\xb6\x91E\x8e\xa9e\x11')
"PRIV:WM/WMContentID:Õüè\x17'\x9e\x00O¹»\x85Ênrs\x1a"  PRIV(owner='WM/WMContentID', data=b"\xd5\xfc\xe8\x17'\x9e\x00O\xb9\xbb\x85\xcanrs\x1a")
'TALB' (Album/Movie/Show title)                     'Undoing Ruin Disc 1'
'TBPM' (BPM (beats per minute))                     '119'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'FreeRIP 2.941'
'TIT2' (Title/songname/content description)         'Sound the Surrender'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Darkest Hour'
'TPE2' (Band/orchestra/accompaniment)               'Darkest Hour'
'TPUB' (Publisher)                                  'Victory'
'TRCK' (Track number/Position in set)               '4'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.53 dB'
'TXXX:replaygain_track_peak'                        '0.475488'

========================== row from database ==========================
                                              'id'  1319219
                                            'path'  /data/Music/Bulk/00poprockelectronic/Darkest Hour/Undoing Ruin Disc 1/Darkest Hour-Undoing Ruin Disc 1-Sound the Surrender.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  223
                                           'genre'  rock-unsorted
                                        'filesize'  3574888
                                           'mtime'  1620389544
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic rock unsorted
                                      'tag_artist'  Darkest Hour
                                     'tag_release'  Undoing Ruin Disc 1
                                       'tag_title'  Sound the Surrender
                                             'bpm'  119.0
                                    'search_title'  'sound':1 'surrender':3 'the':2
                                   'search_artist'  'darkest':1 'hour':2
                                  'search_release'  '1':4 'disc':3 'ruin':2 'undoing':1
                                     'search_rest'  '00poprockelectronic':1 'rock':2 'unsorted':3
                                    'search_combo'  '00poprockelectronic':10 '1':9C 'darkest':4B 'disc':8C 'hour':5B 'rock':11 'ruin':7C 'sound':1A 'surrender':3A 'the':2A 'undoing':6C 'unsorted':12
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'metalcore', 'hardcore', 'melodic death metal', 'metal']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620389543.8387663  (2021-05-07 14:12:23)
                             'size'  3574888