======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '344'
                                          'artist'  'ムック'
                                     'text_people'  ''
                                         'release'  'tsuuzetsu ~inshou chigai~'
                                           'title'  'hai'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jrock', 'rock', 'visual kei', 'japanese', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '116.992'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00001674 00001614 00011F11'
'COMM:iTunNORM:eng'                                 (' 00001674 00001614 00011F11 0000AC21 0004E245 0004E22E 00008000 00008000 '
 '000138C5 00009C6E')
'TALB' (Album/Movie/Show title)                     'tsuuzetsu ~inshou chigai~'
'TBPM' (BPM (beats per minute))                     '116.992'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'hai'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mucc'
'TPE2' (Band/orchestra/accompaniment)               'ムック'
'TRCK' (Track number/Position in set)               '03'
'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'                                   ['jrock', 'rock', 'visual kei', 'japanese', 'j rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-2.57 dB'
'TXXX:replaygain_track_peak'                        '0.577781'

========================== row from database ==========================
                                              'id'  929764
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Mucc/tsuuzetsu ~inshou chigai~/03 hai.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  344
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  5513088
                                           'mtime'  1637020223
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Mucc 03 loc asia japan;loc asia japan jrock
                                      'tag_artist'  ムック
                                     'tag_release'  tsuuzetsu ~inshou chigai~
                                       'tag_title'  hai
                                             'bpm'  116.992
                                    'search_title'  'hai':1
                                   'search_artist'  'mutuku':2 'ムック':1
                                  'search_release'  'chigai':3 'inshou':2 'tsuuzetsu':1
                                     'search_rest'  '00asia':1 'asia':4 'japan':5,7,9 'jrock':10 'loc':3,6,8 'mucc':2
                                    'search_combo'  '00asia':7 'asia':10 'chigai':6C 'hai':1A 'inshou':5C 'japan':11,13,15 'jrock':16 'loc':9,12,14 'mucc':8 'mutuku':3B 'tsuuzetsu':4C 'ムック':2B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['jrock', 'rock', 'visual kei', 'japanese', 'j rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637020223.0272026  (2021-11-16 00:50:23)
                             'size'  5513088