======================== unified (from filesystem) ========================
                                         'bitrate'  '219.558'
                                        'duration'  '190'
                                          'artist'  'Opeth'
                                     'text_people'  'M Akerfeldt'
                                         'release'  'Watershed'
                                           'title'  'Coil'
                                           '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-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['progressive death metal', 'metal', 'melodic death metal', 'death metal', "
 "'progressive metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'eid-metal-progressive'
                                             'bpm'  '131.584'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'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')
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'PRIV:WM/WMCollectionID:Áç½³.þ\x0fL¯i\x08Êp®¦Ò'     PRIV(owner='WM/WMCollectionID', data=b'\xc1\xe7\xbd\xb3.\xfe\x0fL\xafi\x08\xcap\xae\xa6\xd2')
'PRIV:WM/WMContentID:-\x1cós1·wM½pÉ\x88¨\n]¬'       PRIV(owner='WM/WMContentID', data=b'-\x1c\xf3s1\xb7wM\xbdp\xc9\x88\xa8\n]\xac')
'TALB' (Album/Movie/Show title)                     'Watershed'
'TBPM' (BPM (beats per minute))                     '131.584'
'TCOM' (Composer)                                   'M Akerfeldt'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-progressive'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Coil'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Opeth'
'TPE2' (Band/orchestra/accompaniment)               'Opeth'
'TPUB' (Publisher)                                  'Roadrunner'
'TRCK' (Track number/Position in set)               '1'
'TSSE' (Software/Hardware and settings used for encoding)  ('Audiograbber 1.83.01, LAME dll 3.97, VBR 0 (Default method), Joint Stereo, '
 'Normal quality')
'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'                                   ['progressive death metal',
 'metal',
 'melodic death metal',
 'death metal',
 'progressive metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.25 dB'
'TXXX:replaygain_track_peak'                        '0.626227'

========================== row from database ==========================
                                              'id'  1261237
                                            'path'  /data/Music/Bulk/00dwimp/Opeth/Watershed/01 - Opeth - Coil.mp3
                                         'working'  None
                                         'bitrate'  219
                                    'duration_sec'  190
                                           'genre'  eid-metal-progressive
                                        'filesize'  5238955
                                           'mtime'  1620310892
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 01 eid metal progressive
                                      'tag_artist'  Opeth
                                     'tag_release'  Watershed
                                       'tag_title'  Coil
                                             'bpm'  131.584
                                    'search_title'  'coil':1
                                   'search_artist'  'opeth':1
                                  'search_release'  'watershed':1
                                     'search_rest'  '00dwimp':1 'eid':2 'metal':3 'progressive':4
                                    'search_combo'  '00dwimp':4 'coil':1A 'eid':5 'metal':6 'opeth':2B 'progressive':7 'watershed':3C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['progressive death metal', 'metal', 'melodic death metal', 'death metal', 'progressive metal']
                                        'tag_date'  2008
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310891.868588  (2021-05-06 16:21:31)
                             'size'  5238955