======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '300'
                                          'artist'  'Klaha'
                                     'text_people'  ''
                                         'release'  'Nostal Lab'
                                           'title'  'kiseki no koe'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['j pop', 'jrock', 'visual kei', 'japanese', 'jpop', 'j rock']"
                                     'discogstags'  "['j-pop', 'pop', 'ballad']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-pop-jrock-visualkei;loc-asia-japan-jrock'
                                             'bpm'  '111.763'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000CDD 000000FD 0000955C'
'COMM:iTunNORM:eng'                                 (' 00000CDD 000000FD 0000955C 00003BA9 0000A914 00034214 00006AE3 000069F5 '
 '0003A578 0003A9A7')
'COMM:iTunes_CDDB_IDs:eng'                          '12+9FB804CAA425FA37F30F79885963875F+2542979'
'TALB' (Album/Movie/Show title)                     'Nostal Lab'
'TBPM' (BPM (beats per minute))                     '111.763'
'TCON' (Content type, a.k.a. Genre)                 ['rock-pop-jrock-visualkei', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2002'
'TENC' (Encoded by)                                 'iTunes v4.7.0.42'
'TIT2' (Title/songname/content description)         'kiseki no koe'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Klaha'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '7/12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['j-pop', 'pop', 'ballad']
'TXXX:lastfmtags'                                   ['j pop', 'jrock', 'visual kei', 'japanese', 'jpop', 'j rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.83 dB'
'TXXX:replaygain_track_peak'                        '0.423197'

========================== row from database ==========================
                                              'id'  1362133
                                            'path'  /data/Music/Bulk/00poprockelectronic/Klaha/Nostal Lab/07 kiseki no koe.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  300
                                           'genre'  rock-pop-jrock-visualkei;loc-asia-japan-jrock
                                        'filesize'  7061504
                                           'mtime'  1622801869
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 rock pop jrock visualkei;loc asia japan jrock
                                      'tag_artist'  Klaha
                                     'tag_release'  Nostal Lab
                                       'tag_title'  kiseki no koe
                                             'bpm'  111.763
                                    'search_title'  'kiseki':1 'koe':3 'no':2
                                   'search_artist'  'klaha':1
                                  'search_release'  'lab':2 'nostal':1
                                     'search_rest'  '00poprockelectronic':1 'asia':9 'japan':10 'jrock':4 'loc':6,8 'pop':3 'rock':2 'visualkei':5,7
                                    'search_combo'  '00poprockelectronic':7 'asia':15 'japan':16 'jrock':10 'kiseki':1A 'klaha':4B 'koe':3A 'lab':6C 'loc':12,14 'no':2A 'nostal':5C 'pop':9 'rock':8 'visualkei':11,13
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['j pop', 'jrock', 'visual kei', 'japanese', 'jpop', 'j rock']
                                        'tag_date'  2002
                                     'discogstags'  ['j-pop', 'pop', 'ballad']

============================== file details ==============================
                                           'mtime'  1622801869.1601858  (2021-06-04 12:17:49)
                             'size'  7061504