======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '302'
                                          'artist'  'Schwarz Stein'
                                     'text_people'  ''
                                         'release'  'Artificial Hallucination'
                                           'title'  'Emergence of Silence'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['visual kei', 'electronic', 'japanese', 'j rock', 'darkwave']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;rock-gr-punk-jpunk;set-pl-sced'
                                             'bpm'  '136.001'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000CD1 00000E7E 00003E65'
'COMM:iTunNORM:eng'                                 (' 00000CD1 00000E7E 00003E65 00003FB8 0003A997 00029827 00008000 00008000 '
 '000111B5 0001D505')
'MCDI' (Music CD identifier)                        MCDI(data=b'A\x00+\x009\x006\x00+\x002\x00D\x008\x007\x00+\x007\x00D\x002\x00F\x00+\x00C\x005\x003\x00A\x00+\x001\x000\x00F\x004\x00A\x00+\x001\x005\x008\x000\x003\x00+\x001\x00B\x000\x00A\x005\x00+\x001\x00F\x000\x00F\x00E\x00+\x002\x004\x004\x005\x00F\x00+\x002\x005\x00B\x001\x00B\x00+\x002\x00C\x007\x00E\x00A\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Artificial Hallucination'
'TBPM' (BPM (beats per minute))                     '136.001'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'rock-gr-punk-jpunk', 'set-pl-sced']
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Emergence of Silence'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Schwarz Stein'
'TPE2' (Band/orchestra/accompaniment)               'Schwarz Stein'
'TPUB' (Publisher)                                  'Ｍｉｄｉ：Ｎｅｔｔｅ'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['visual kei', 'electronic', 'japanese', 'j rock', 'darkwave']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.98 dB'
'TXXX:replaygain_track_peak'                        '0.467799'

========================== row from database ==========================
                                              'id'  400099
                                            'path'  /data/Music/Bulk/00localcharacter/Schwarz Stein/[2004] Artificial Hallucination/06 Emergence of Silence.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  302
                                           'genre'  loc-asia-japan;rock-gr-punk-jpunk;set-pl-sced
                                        'filesize'  13146313
                                           'mtime'  1637019914
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [2004] 06 loc asia japan;rock gr punk jpunk;set pl sced
                                      'tag_artist'  Schwarz Stein
                                     'tag_release'  Artificial Hallucination
                                       'tag_title'  Emergence of Silence
                                             'bpm'  136.001
                                    'search_title'  'emergence':1 'of':2 'silence':3
                                   'search_artist'  'schwarz':1 'stein':2
                                  'search_release'  'artificial':1 'hallucination':2
                                     'search_rest'  '2004':1,2 'asia':4 'gr':9 'japan':5,7 'jpunk':11,13 'loc':3 'pl':15 'punk':10 'rock':6,8 'sced':16 'set':12,14
                                    'search_combo'  '2004':8,9 'artificial':6C 'asia':11 'emergence':1A 'gr':16 'hallucination':7C 'japan':12,14 'jpunk':18,20 'loc':10 'of':2A 'pl':22 'punk':17 'rock':13,15 'sced':23 'schwarz':4B 'set':19,21 'silence':3A 'stein':5B
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', '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-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['visual kei', 'electronic', 'japanese', 'j rock', 'darkwave']
                                        'tag_date'  2004
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1637019913.8166473  (2021-11-16 00:45:13)
                             'size'  13146313