======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '347'
                                          'artist'  'Shoukichi Kina and Champloose'
                                     'text_people'  ''
                                         'release'  'Shoukichi Kina and Champloose'
                                           'title'  'Shimaguwa Song'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['okinawa', 'folk', 'japan', 'japanese', 'okinawan']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1977'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '108.181'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '006/100 Rolling Stone Japan                             喜納昌吉＆チャンプルーズ   島小ソング'
'COMM:ID3v1 Comment:XXX'                            '006/100 Rolling Stone Japan'
'COMM:iTunNORM:eng'                                 (' 000003FC 0000052F 00001086 00001B0C 0001ADC7 0001D505 00004C40 000059F9 '
 '0001ADC7 00041EC7')
'TALB' (Album/Movie/Show title)                     'Shoukichi Kina and Champloose'
'TBPM' (BPM (beats per minute))                     '108.181'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TDRC' (Recording time)                             '1977'
'TENC' (Encoded by)                                 'MP3Producer by MP3Developments.com'
'TIT2' (Title/songname/content description)         'Shimaguwa Song'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Shoukichi Kina and Champloose'
'TRCK' (Track number/Position in set)               '9'
'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:lastfmtags'                                   ['okinawa', 'folk', 'japan', 'japanese', 'okinawan']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.98 dB'
'TXXX:replaygain_track_peak'                        '0.548401'

========================== row from database ==========================
                                              'id'  932820
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Shoukichi Kina  and Champloose - 喜納昌吉&チャンプルーズ/09_Shimaguwa Song.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  347
                                           'genre'  loc-asia-japan
                                        'filesize'  8438483
                                           'mtime'  1621489145
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 喜納昌吉&チャンプルーズ 09_Shimaguwa loc asia japan
                                      'tag_artist'  Shoukichi Kina and Champloose
                                     'tag_release'  Shoukichi Kina and Champloose
                                       'tag_title'  Shimaguwa Song
                                             'bpm'  108.181
                                    'search_title'  'shimaguwa':1 'song':2
                                   'search_artist'  'and':3 'champloose':4 'kina':2 'shoukichi':1
                                  'search_release'  'and':3 'champloose':4 'kina':2 'shoukichi':1
                                     'search_rest'  '00asia':1 '09':8 'asia':11 'japan':12 'loc':10 'shimaguwa':9 'tiyanhurusu':6 'チャンプルーズ':3 '喜納昌吉':2,5 '喜納昌吉tiyanhurusu':7 '喜納昌吉チャンプルーズ':4
                                    'search_combo'  '00asia':11 '09':18 'and':5B,9C 'asia':21 'champloose':6B,10C 'japan':22 'kina':4B,8C 'loc':20 'shimaguwa':1A,19 'shoukichi':3B,7C 'song':2A 'tiyanhurusu':16 'チャンプルーズ':13 '喜納昌吉':12,15 '喜納昌吉tiyanhurusu':17 '喜納昌吉チャンプルーズ':14
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['okinawa', 'folk', 'japan', 'japanese', 'okinawan']
                                        'tag_date'  1977
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621489144.6877573  (2021-05-20 07:39:04)
                             'size'  8438483