======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '137'
                                          'artist'  'Lamb of God'
                                     'text_people'  'Adler/Blythe/Campbell/Morton'
                                         'release'  'Killadelphia'
                                           'title'  'Bloodletting'
                                           '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-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '106'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_IDs:eng'                          '16+040D33FAB6404F2552F877183024FFF1+6608687'
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'PRIV:WM/WMContentID:¼çá\x83Ñ\x12ÂE¤\x86ºÅ\x1fîk\x07'  PRIV(owner='WM/WMContentID', data=b'\xbc\xe7\xe1\x83\xd1\x12\xc2E\xa4\x86\xba\xc5\x1f\xeek\x07')
'TALB' (Album/Movie/Show title)                     'Killadelphia'
'TBPM' (BPM (beats per minute))                     '106'
'TCOM' (Composer)                                   'Adler/Blythe/Campbell/Morton'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2005'
'TENC' (Encoded by)                                 'iTunes v6.0.4.2'
'TIT2' (Title/songname/content description)         'Bloodletting'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lamb of God'
'TPE2' (Band/orchestra/accompaniment)               'Lamb of God'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Epic'
'TRCK' (Track number/Position in set)               '12'
'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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'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'                        '-2.14 dB'
'TXXX:replaygain_track_peak'                        '0.325155'

========================== row from database ==========================
                                              'id'  1400639
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Lamb Of God/Killadelphia/Lamb of God-Killadelphia-Bloodletting.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  137
                                           'genre'  eid-metal-death
                                        'filesize'  5520294
                                           'mtime'  1620302066
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal Of eid metal death
                                      'tag_artist'  Lamb of God
                                     'tag_release'  Killadelphia
                                       'tag_title'  Bloodletting
                                             'bpm'  106.0
                                    'search_title'  'bloodletting':1
                                   'search_artist'  'god':3 'lamb':1 'of':2
                                  'search_release'  'killadelphia':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':6 'eid':4 'metal':5 'of':3
                                    'search_combo'  '00dwimp':6 '00metal':7 'bloodletting':1A 'death':11 'eid':9 'god':4B 'killadelphia':5C 'lamb':2B 'metal':10 'of':3B,8
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  7A
                                           '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-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302065.6870875  (2021-05-06 13:54:25)
                             'size'  5520294