======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '300'
                                          'artist'  'くるり'
                                     'text_people'  ''
                                         'release'  'NIKKI'
                                           'title'  'Superstar（Album Edit）'
                                           '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-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['j pop', 'japanese', 'rock', 'japanese rock', 'alternative', 'j rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '129.398'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '[Quruli]'
'COMM:iTunNORM:eng'                                 (' 0000159C 00001402 00003FD6 00004341 0003F7E5 000445D7 00008000 00008000 '
 '0002712E 00030D6E')
'TALB' (Album/Movie/Show title)                     'NIKKI'
'TBPM' (BPM (beats per minute))                     '129.398'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'Superstar（Album Edit）'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Quruli'
'TPE2' (Band/orchestra/accompaniment)               'くるり'
'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'                                   ['j pop', 'japanese', 'rock', 'japanese rock', 'alternative', 'j rock']
'TXXX:other'                                        '2005'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.34 dB'
'TXXX:replaygain_track_peak'                        '0.456196'

========================== row from database ==========================
                                              'id'  927465
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Quruli/[2005] NIKKI/03 Superstar（Album Edit）.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  300
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  7212727
                                           'mtime'  1637330096
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia Quruli [2005] 03 loc asia japan;loc asia japan jrock
                                      'tag_artist'  くるり
                                     'tag_release'  NIKKI
                                       'tag_title'  Superstar（Album Edit）
                                             'bpm'  129.398
                                    'search_title'  'album':2,4 'edit':6,7,8 'superstar':1,3 'superstaralbum':5
                                   'search_artist'  'kururi':2 'くるり':1
                                  'search_release'  'nikki':1
                                     'search_rest'  '00asia':1 '2005':3,4 'asia':6 'japan':7,9,11 'jrock':12 'loc':5,8,10 'quruli':2
                                    'search_combo'  '00asia':12 '2005':14,15 'album':2A,4A 'asia':17 'edit':6A,7A,8A 'japan':18,20,22 'jrock':23 'kururi':10B 'loc':16,19,21 'nikki':11C 'quruli':13 'superstar':1A,3A 'superstaralbum':5A 'くるり':9B
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['j pop', 'japanese', 'rock', 'japanese rock', 'alternative', 'j rock']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330096.2518392  (2021-11-19 14:54:56)
                             'size'  7212727