======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '183'
                                          'artist'  'Schwarz Stein'
                                     'text_people'  'Music by Hora, Lyrics by Kaya'
                                         'release'  'Current [single]'
                                           'title'  'Syphilis and Disorder'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['visual kei', 'electronic', 'japanese', 'j rock', 'darkwave']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;rock-gr-punk-jpunk;set-pl-sced'
                                             'bpm'  '141.019'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00001313 00001384 00005BF9'
'COMM:iTunNORM:eng'                                 (' 00001313 00001384 00005BF9 00005B22 000222F7 000222F7 00008000 00008000 '
 '000138C5 0001FBD0')
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x001\x00+\x009\x006\x00+\x005\x000\x00D\x009\x00+\x008\x00C\x009\x008\x00+\x00D\x00C\x008\x00F\x00+\x001\x001\x008\x002\x00B\x00+\x001\x006\x00D\x008\x009\x00+\x001\x00A\x002\x00B\x004\x00+\x001\x00F\x007\x00F\x001\x00+\x002\x002\x00D\x002\x00A\x00+\x002\x003\x00E\x002\x005\x00+\x002\x008\x00C\x00A\x005\x00+\x002\x00D\x00C\x000\x00C\x00+\x003\x001\x00E\x00C\x006\x00+\x003\x006\x009\x008\x002\x00+\x003\x00B\x00C\x00D\x004\x00+\x003\x00F\x002\x00A\x001\x00+\x004\x004\x005\x00C\x006\x00+\x004\x007\x00B\x002\x000\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Current [single]'
'TBPM' (BPM (beats per minute))                     '141.019'
'TCOM' (Composer)                                   'Music by Hora, Lyrics by Kaya'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'rock-gr-punk-jpunk', 'set-pl-sced']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Syphilis and Disorder'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Schwarz Stein'
'TPE2' (Band/orchestra/accompaniment)               'Schwarz Stein'
'TRCK' (Track number/Position in set)               '2'
'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'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.18 dB'
'TXXX:replaygain_track_peak'                        '0.465254'

========================== row from database ==========================
                                              'id'  451344
                                            'path'  /data/Music/Bulk/00localcharacter/Schwarz Stein/[2003] Current [single]/02 Syphilis and Disorder.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  183
                                           'genre'  loc-asia-japan;rock-gr-punk-jpunk;set-pl-sced
                                        'filesize'  7578016
                                           'mtime'  1637019920
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter [2003] 02 loc asia japan;rock gr punk jpunk;set pl sced
                                      'tag_artist'  Schwarz Stein
                                     'tag_release'  Current [single]
                                       'tag_title'  Syphilis and Disorder
                                             'bpm'  141.019
                                    'search_title'  'and':2 'disorder':3 'syphilis':1
                                   'search_artist'  'schwarz':1 'stein':2
                                  'search_release'  'current':1 'single':2,3
                                     'search_rest'  '2003':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'  '2003':9,10 'and':2A 'asia':12 'current':6C 'disorder':3A 'gr':17 'japan':13,15 'jpunk':19,21 'loc':11 'pl':23 'punk':18 'rock':14,16 'sced':24 'schwarz':4B 'set':20,22 'single':7C,8C 'stein':5B 'syphilis':1A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-2', 'q-grit-3']
                                      'lastfmtags'  ['visual kei', 'electronic', 'japanese', 'j rock', 'darkwave']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1637019919.5251362  (2021-11-16 00:45:19)
                             'size'  7578016