======================== unified (from filesystem) ========================
                                         'bitrate'  '245.916'
                                        'duration'  '236'
                                          'artist'  'Children of Bodom'
                                     'text_people'  ''
                                         'release'  'Are You Dead Yet?'
                                           'title'  'Are You Dead Yet?'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-4', 'q-grit-4', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['death metal', 'melodic death metal', 'metal', 'finnish', 'power metal']"
                                     'discogstags'  "['melodic death metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '95.890'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:T,\x00\x00'                      PRIV(owner='AverageLevel', data=b'T,\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\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')
'TALB' (Album/Movie/Show title)                     'Are You Dead Yet?'
'TBPM' (BPM (beats per minute))                     '95.890'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Are You Dead Yet?'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Children of Bodom'
'TRCK' (Track number/Position in set)               '2'
'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'                                  ['melodic death metal', 'rock']
'TXXX:lastfmtags'                                   ['death metal', 'melodic death metal', 'metal', 'finnish', 'power metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '4'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.50 dB'
'TXXX:replaygain_track_peak'                        '0.479800'

========================== row from database ==========================
                                              'id'  1276467
                                            'path'  /data/Music/Bulk/00dwimp/Children of Bodom/Are you dead yet/02 Are You Dead Yet.mp3
                                         'working'  None
                                         'bitrate'  245
                                    'duration_sec'  236
                                           'genre'  eid-metal-death
                                        'filesize'  7257810
                                           'mtime'  1620302108
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp you dead yet 02 eid metal death
                                      'tag_artist'  Children of Bodom
                                     'tag_release'  Are You Dead Yet?
                                       'tag_title'  Are You Dead Yet?
                                             'bpm'  95.89
                                    'search_title'  'are':1 'dead':3 'yet':4 'you':2
                                   'search_artist'  'bodom':3 'children':1 'of':2
                                  'search_release'  'are':1 'dead':3 'yet':4 'you':2
                                     'search_rest'  '00dwimp':1 'dead':3 'death':7 'eid':5 'metal':6 'yet':4 'you':2
                                    'search_combo'  '00dwimp':12 'are':1A,8C 'bodom':7B 'children':5B 'dead':3A,10C,14 'death':18 'eid':16 'metal':17 'of':6B 'yet':4A,11C,15 'you':2A,9C,13
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-4', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['death metal', 'melodic death metal', 'metal', 'finnish', 'power metal']
                                        'tag_date'  2005
                                     'discogstags'  ['melodic death metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620302107.6034703  (2021-05-06 13:55:07)
                             'size'  7257810