======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '222'
                                          'artist'  'Kaji Meiko'
                                     'text_people'  ''
                                         'release'  '梶芽衣子 Super Value'
                                           'title'  'Nagasaki Wa Ajisai-Moyou No Aishuu'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-OLDST-3', '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-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'enka', 'female vocalists', 'soundtrack', 'j-pop']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '0'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan'
                                             'bpm'  '142.7'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     '梶芽衣子 Super Value'
'TBPM' (BPM (beats per minute))                     '142.7'
'TCON' (Content type, a.k.a. Genre)                 'loc-asia-japan'
'TIT2' (Title/songname/content description)         'Nagasaki Wa Ajisai-Moyou No Aishuu'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Kaji Meiko'
'TPOS' (Part of a set)                              '/0'
'TRCK' (Track number/Position in set)               '6/0'
'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'                                   ['japanese', 'enka', 'female vocalists', 'soundtrack', 'j-pop']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.22 dB'
'TXXX:replaygain_track_peak'                        '0.558789'

========================== row from database ==========================
                                              'id'  1298591
                                            'path'  /data/Music/Bulk/00localcharacter/Kaji Meiko/Kaji Meiko - Nagasaki Wa Ajisai-Moyou No Aishuu.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  222
                                           'genre'  loc-asia-japan
                                        'filesize'  3555200
                                           'mtime'  1622821553
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter loc asia japan
                                      'tag_artist'  Kaji Meiko
                                     'tag_release'  梶芽衣子 Super Value
                                       'tag_title'  Nagasaki Wa Ajisai-Moyou No Aishuu
                                             'bpm'  142.7
                                    'search_title'  'aishuu':7 'ajisai':3 'ajisaimoyou':5 'moyou':4 'nagasaki':1 'no':6 'wa':2
                                   'search_artist'  'kaji':1 'meiko':2
                                  'search_release'  'super':2 'value':3 '梶芽衣子':1
                                     'search_rest'  'asia':2 'japan':3 'loc':1
                                    'search_combo'  'aishuu':7A 'ajisai':3A 'ajisaimoyou':5A 'asia':14 'japan':15 'kaji':8B 'loc':13 'meiko':9B 'moyou':4A 'nagasaki':1A 'no':6A 'super':11C 'value':12C 'wa':2A '梶芽衣子':10C
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', '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-1', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'enka', 'female vocalists', 'soundtrack', 'j-pop']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622821553.0296342  (2021-06-04 17:45:53)
                             'size'  3555200