======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '312'
                                          'artist'  'Tujiko Noriko'
                                     'text_people'  ''
                                         'release'  'From Tokyo To Naiagara'
                                           'title'  'Tokyo'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-UNU-2', '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-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'female vocalists', 'electronic', 'japanese', 'experimental']"
                                     'discogstags'  "['electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '8'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '123.632'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000A3C 0000016E 00007879'
'COMM:iTunNORM:eng'                                 (' 00000A3C 0000016E 00007879 00003AC5 00023C58 000292E0 00007938 00007F32 '
 '0003C11F 0003AA5E')
'COMM:iTunes_CDDB_IDs:eng'                          '8+7C87B1D7C83A88DB22B47BB0620CFF3A+2873143'
'TALB' (Album/Movie/Show title)                     'From Tokyo To Naiagara'
'TBPM' (BPM (beats per minute))                     '123.632'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'iTunes v4.0.1'
'TIT2' (Title/songname/content description)         'Tokyo'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Tujiko Noriko'
'TRCK' (Track number/Position in set)               '6/8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'experimental']
'TXXX:lastfmtags'                                   ['electronica', 'female vocalists', 'electronic', 'japanese', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '0.556607'

========================== row from database ==========================
                                              'id'  933520
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Tujiko Noriko/From Tokyo To Naiagara/06 Tokyo.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  312
                                           'genre'  loc-asia-japan
                                        'filesize'  6248591
                                           'mtime'  1637330161
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 06 loc asia japan
                                      'tag_artist'  Tujiko Noriko
                                     'tag_release'  From Tokyo To Naiagara
                                       'tag_title'  Tokyo
                                             'bpm'  123.632
                                    'search_title'  'tokyo':1
                                   'search_artist'  'noriko':2 'tujiko':1
                                  'search_release'  'from':1 'naiagara':4 'to':3 'tokyo':2
                                     'search_rest'  '00asia':1 'asia':3 'japan':4 'loc':2
                                    'search_combo'  '00asia':8 'asia':10 'from':4C 'japan':11 'loc':9 'naiagara':7C 'noriko':3B 'to':6C 'tokyo':1A,5C 'tujiko':2B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  12A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'female vocalists', 'electronic', 'japanese', 'experimental']
                                        'tag_date'  2003
                                     'discogstags'  ['electronic', 'experimental']

============================== file details ==============================
                                           'mtime'  1637330161.3157334  (2021-11-19 14:56:01)
                             'size'  6248591