======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '122'
                                          'artist'  'ゴールデン・ハーフ'
                                     'text_people'  ''
                                         'release'  'The Golden Half - Golden Best ゴールデン・ベスト'
                                           'title'  '悲しき16才'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['kayoukyoku', 'female vocalists', 'japanese', 'j pop', 'showa']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '20'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan-jpop;loc-asia-japan'
                                             'bpm'  '111.1'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 0000053F 000004C7 00004986 00002977 0000E787 00019A00 00008520 00007A34 '
 '0001BF58 000164A1')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000750 0000000000529DA0 00000000 00256B97 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '20++'
'TALB' (Album/Movie/Show title)                     'The Golden Half - Golden Best ゴールデン・ベスト'
'TBPM' (BPM (beats per minute))                     '111.1'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan-jpop', 'loc-asia-japan']
'TDRC' (Recording time)                             '1970'
'TENC' (Encoded by)                                 'iTunes 12.3.2.35'
'TIT2' (Title/songname/content description)         '悲しき16才'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'ゴールデン・ハーフ'
'TRCK' (Track number/Position in set)               '11/20'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['kayoukyoku', 'female vocalists', 'japanese', 'j pop', 'showa']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.50 dB'
'TXXX:replaygain_track_peak'                        '0.732882'

========================== row from database ==========================
                                              'id'  1494483
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/ゴールデン・ハーフ - The Golden Half - Golden Best ゴールデン・ベスト/11 悲しき16才.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  122
                                           'genre'  loc-asia-japan-jpop;loc-asia-japan
                                        'filesize'  2458812
                                           'mtime'  1638545377
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 11 loc asia japan jpop;loc asia japan
                                      'tag_artist'  ゴールデン・ハーフ
                                     'tag_release'  The Golden Half - Golden Best ゴールデン・ベスト
                                       'tag_title'  悲しき16才
                                             'bpm'  111.1
                                    'search_title'  '悲siki16才':2 '悲しき16才':1
                                   'search_artist'  'hahu':4 'koruten':3 'ゴールデン':1 'ハーフ':2
                                  'search_release'  'best':4 'golden':2 'half':3 'hesuto':8 'koruten':7 'the':1 'ゴールデン':5 'ベスト':6
                                     'search_rest'  '00asia':1 'asia':3 'japan':4 'jpop':5,7 'loc':2,6,8
                                    'search_combo'  '00asia':15 'asia':17 'best':10C 'golden':8C 'hahu':6B 'half':9C 'hesuto':14C 'japan':18 'jpop':19,21 'koruten':5B,13C 'loc':16,20,22 'the':7C 'ゴールデン':3B,11C 'ハーフ':4B 'ベスト':12C '悲siki16才':2A '悲しき16才':1A
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['kayoukyoku', 'female vocalists', 'japanese', 'j pop', 'showa']
                                        'tag_date'  1970
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638545376.965192  (2021-12-03 16:29:36)
                             'size'  2458812