======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '345'
                                          'artist'  'Lamb of God'
                                     'text_people'  'Campbell/Chris Adler/Mark Morton/Randy Blythe'
                                         'release'  'Ashes of the Wake'
                                           'title'  'Ashes of the Wake [Instrumental]'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '96'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_IDs:eng'                          '11+9D0D2651389E5E61BE873BF3FDAB0D85+4431114'
'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\x000\x006\x004\x002\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x004\x002\x004\x006\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x002\x000\x002\x008\x004\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x007\x000\x006\x004\x002\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x004\x004\x002\x004\x006\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x007\x002\x000\x002\x008\x004\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:´¦ïb{(+A\x9fÂó¸\x10\x99\x0f\x8d'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xb4\xa6\xefb{(+A\x9f\xc2\xf3\xb8\x10\x99\x0f\x8d')
'PRIV:WM/WMCollectionID:´¦ïb{(+A\x9fÂó¸\x10\x99\x0f\x8d'  PRIV(owner='WM/WMCollectionID', data=b'\xb4\xa6\xefb{(+A\x9f\xc2\xf3\xb8\x10\x99\x0f\x8d')
'PRIV:WM/WMContentID:¸üæ_²ØÀL\x95#\x15K\x9eÞsò'     PRIV(owner='WM/WMContentID', data=b'\xb8\xfc\xe6_\xb2\xd8\xc0L\x95#\x15K\x9e\xdes\xf2')
'TALB' (Album/Movie/Show title)                     'Ashes of the Wake'
'TBPM' (BPM (beats per minute))                     '96'
'TCOM' (Composer)                                   'Campbell/Chris Adler/Mark Morton/Randy Blythe'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2004'
'TENC' (Encoded by)                                 'iTunes v6.0.4.2'
'TIT2' (Title/songname/content description)         'Ashes of the Wake [Instrumental]'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lamb of God'
'TPE2' (Band/orchestra/accompaniment)               'Lamb of God'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '1'
'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'                                   ['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.59 dB'
'TXXX:replaygain_track_peak'                        '0.400485'

========================== row from database ==========================
                                              'id'  1394273
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Lamb Of God/Ashes of the Wake/Lamb of God-Ashes of the Wake-Ashes of the Wake [Instrumental].mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  345
                                           'genre'  eid-metal-death
                                        'filesize'  13812603
                                           'mtime'  1620302066
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Of eid metal death
                                      'tag_artist'  Lamb of God
                                     'tag_release'  Ashes of the Wake
                                       'tag_title'  Ashes of the Wake [Instrumental]
                                             'bpm'  96.0
                                    'search_title'  'ashes':1 'instrumental':5,6 'of':2 'the':3 'wake':4
                                   'search_artist'  'god':3 'lamb':1 'of':2
                                  'search_release'  'ashes':1 'of':2 'the':3 'wake':4
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':6 'eid':4 'metal':5 'of':3
                                    'search_combo'  '00dwimp':14 '00metal':15 'ashes':1A,10C 'death':19 'eid':17 'god':9B 'instrumental':5A,6A 'lamb':7B 'metal':18 'of':2A,8B,11C,16 'the':3A,12C 'wake':4A,13C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-2', 'q-grit-4']
                                      'lastfmtags'  ['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']
                                        'tag_date'  2004
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302065.5897026  (2021-05-06 13:54:25)
                             'size'  13812603