======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '468'
                                          'artist'  '1349'
                                     'text_people'  ''
                                         'release'  'Demonoir'
                                           'title'  'Pandemonium War Bells'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['norwegian', 'true norwegian black metal', 'black metal', 'metal', "
 "'norwegian black metal']")
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '13'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'eid-metal-black'
                                             'bpm'  '117'
                                             'key'  '6B'
                                        'acoustid'  '5d457cb5-7db2-4c45-98c2-c24f1a8c9c9a'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Demonoir'
'TBPM' (BPM (beats per minute))                     '117'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-black'
'TDOR' (Original release time)                      '2010'
'TDRC' (Recording time)                             '2010-04-26'
'TIT2' (Title/songname/content description)         'Pandemonium War Bells'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               '1349'
'TPE2' (Band/orchestra/accompaniment)               '1349'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Indie Recordings'
'TRCK' (Track number/Position in set)               '8/13'
'TSO2'                                              '1349'
'TSOP' (Performer sort order)                       '1349'
'TXXX:ASIN'                                         'B003BI4TIM'
'TXXX:Acoustid Id'                                  '5d457cb5-7db2-4c45-98c2-c24f1a8c9c9a'
'TXXX:Artists'                                      '1349'
'TXXX:BARCODE'                                      '7090014381533'
'TXXX:CATALOGNUMBER'                                'INDIE666CDL'
'TXXX:MusicBrainz Album Artist Id'                  '2aa07e57-bd8a-4fa0-ba5a-72e8f7c3e63e'
'TXXX:MusicBrainz Album Id'                         '675abffc-adce-484e-9cce-5006dd50551e'
'TXXX:MusicBrainz Album Release Country'            'NO'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '2aa07e57-bd8a-4fa0-ba5a-72e8f7c3e63e'
'TXXX:MusicBrainz Release Group Id'                 'd6d92f00-5c90-431f-99ec-b796c38d4b5a'
'TXXX:MusicBrainz Release Track Id'                 '2ace27e3-91d6-3e2f-b57b-7fd34174f04d'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['norwegian',
 'true norwegian black metal',
 'black metal',
 'metal',
 'norwegian black metal']
'TXXX:originalyear'                                 '2010'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.43 dB'
'TXXX:replaygain_track_peak'                        '0.435377'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'd6489423-fd38-4fb9-b775-1f4c379abc0d')

========================== row from database ==========================
                                              'id'  1393633
                                            'path'  /data/Music/Bulk/00dwimp/00metal/00black/1349 - 2010 - Demonoir/08 - Pandemonium War Bells.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  468
                                           'genre'  eid-metal-black
                                        'filesize'  18828110
                                           'mtime'  1620301203
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 00black 2010 08 eid metal black
                                      'tag_artist'  1349
                                     'tag_release'  Demonoir
                                       'tag_title'  Pandemonium War Bells
                                             'bpm'  117.0
                                    'search_title'  'bells':3 'pandemonium':1 'war':2
                                   'search_artist'  '1349':1
                                  'search_release'  'demonoir':1
                                     'search_rest'  '00black':3 '00dwimp':1 '00metal':2 '2010':4 'black':7 'eid':5 'metal':6
                                    'search_combo'  '00black':8 '00dwimp':6 '00metal':7 '1349':4B '2010':9 'bells':3A 'black':12 'demonoir':5C 'eid':10 'metal':11 'pandemonium':1A 'war':2A
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  6B
                                           '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-3', 'q-other-3', 'Q-HAP-1', 'q-bass-1', 'q-grit-4']
                                      'lastfmtags'  ['norwegian', 'true norwegian black metal', 'black metal', 'metal', 'norwegian black metal']
                                        'tag_date'  2010
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620301202.7319016  (2021-05-06 13:40:02)
                             'size'  18828110