======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '46'
                                          'artist'  'ムック'
                                     'text_people'  ''
                                         'release'  'tsuuzetsu ~inshou chigai~'
                                           'title'  '--------'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jrock', 'rock', 'visual kei', 'japanese', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '144.748'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000115 000000EF 000002BA'
'COMM:iTunNORM:eng'                                 (' 00000115 000000EF 000002BA 000002F6 00003734 00006DF6 00001EE4 00001ECA '
 '0000371D 00006DF6')
'TALB' (Album/Movie/Show title)                     'tsuuzetsu ~inshou chigai~'
'TBPM' (BPM (beats per minute))                     '144.748'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         '--------'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mucc'
'TPE2' (Band/orchestra/accompaniment)               'ムック'
'TRCK' (Track number/Position in set)               '01'
'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'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.22 dB'
'TXXX:replaygain_track_peak'                        '0.860112'

========================== row from database ==========================
                                              'id'  929409
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Mucc/tsuuzetsu ~inshou chigai~/01 --------.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  46
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  751488
                                           'mtime'  1637020223
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Mucc 01 loc asia japan;loc asia japan jrock
                                      'tag_artist'  ムック
                                     'tag_release'  tsuuzetsu ~inshou chigai~
                                       'tag_title'  --------
                                             'bpm'  144.748
                                    'search_title'  
                                   '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':6 'asia':9 'chigai':5C 'inshou':4C 'japan':10,12,14 'jrock':15 'loc':8,11,13 'mucc':7 'mutuku':2B 'tsuuzetsu':3C 'ムック':1B
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['jrock', 'rock', 'visual kei', 'japanese', 'j rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637020222.9983165  (2021-11-16 00:50:22)
                             'size'  751488