======================== unified (from filesystem) ========================
                                         'bitrate'  '236.929'
                                        'duration'  '184'
                                          'artist'  'Devildriver'
                                     'text_people'  ''
                                         'release'  'The Last Kind Words'
                                           'title'  'When Summoned'
                                           '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-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metalcore', 'thrash metal', 'death metal', 'metal', 'groove metal']"
                                     'discogstags'  "['rock', 'death metal', 'heavy metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '85'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{+\x00\x00'                      PRIV(owner='AverageLevel', data=b'{+\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')
'TALB' (Album/Movie/Show title)                     'The Last Kind Words'
'TBPM' (BPM (beats per minute))                     '85'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'When Summoned'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Devildriver'
'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', 'death metal', 'heavy metal']
'TXXX:lastfmtags'                                   ['metalcore', 'thrash metal', 'death metal', 'metal', 'groove metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.88 dB'
'TXXX:replaygain_track_peak'                        '0.416093'

========================== row from database ==========================
                                              'id'  1394798
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Devildriver/The Last Kind Words/10-when_summoned-qtxmp3.mp3
                                         'working'  None
                                         'bitrate'  237
                                    'duration_sec'  184
                                           'genre'  eid-metal-death
                                        'filesize'  5478322
                                           'mtime'  1620301940
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 10 when_summoned qtxmp3 eid metal death
                                      'tag_artist'  Devildriver
                                     'tag_release'  The Last Kind Words
                                       'tag_title'  When Summoned
                                             'bpm'  85.0
                                    'search_title'  'summoned':2 'when':1
                                   'search_artist'  'devildriver':1
                                  'search_release'  'kind':3 'last':2 'the':1 'words':4
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':8 'eid':6 'metal':7 'qtxmp3':5 'summoned':4 'when':3
                                    'search_combo'  '00dwimp':8 '00metal':9 'death':15 'devildriver':3B 'eid':13 'kind':6C 'last':5C 'metal':14 'qtxmp3':12 'summoned':2A,11 'the':4C 'when':1A,10 'words':7C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['metalcore', 'thrash metal', 'death metal', 'metal', 'groove metal']
                                        'tag_date'  2007
                                     'discogstags'  ['rock', 'death metal', 'heavy metal']

============================== file details ==============================
                                           'mtime'  1620301940.357401  (2021-05-06 13:52:20)
                             'size'  5478322