======================== unified (from filesystem) ========================
                                         'bitrate'  '236.362'
                                        'duration'  '282'
                                          'artist'  'Takeshi Terauchi & his Blue Jeans'
                                     'text_people'  ''
                                         'release'  'Rashomon'
                                           'title'  'Matsu no Midori'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['surf', 'instrumental', 'turntable', 'rock', 'eleki']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '1972'
                                        'comments'  ''
                                           'genre'  'rock-pop-surf'
                                             'bpm'  '84.245'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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)                     'Rashomon'
'TBPM' (BPM (beats per minute))                     '84.245'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-surf'
'TDRC' (Recording time)                             '1972'
'TIT2' (Title/songname/content description)         'Matsu no Midori'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'Takeshi Terauchi & his Blue Jeans'
'TPE2' (Band/orchestra/accompaniment)               'Takeshi Terauchi & his Blue Jeans'
'TRCK' (Track number/Position in set)               '4'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.97 (beta)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['surf', 'instrumental', 'turntable', 'rock', 'eleki']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.691728'

========================== row from database ==========================
                                              'id'  929883
                                            'path'  /data/Music/Bulk/00localcharacter/00asia/Takeshi Terauchi/1972 - Rashomon/04. Matsu no Midori.mp3
                                         'working'  None
                                         'bitrate'  236
                                    'duration_sec'  282
                                           'genre'  rock-pop-surf
                                        'filesize'  8351353
                                           'mtime'  1620736838
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00asia 1972 04. rock pop surf
                                      'tag_artist'  Takeshi Terauchi & his Blue Jeans
                                     'tag_release'  Rashomon
                                       'tag_title'  Matsu no Midori
                                             'bpm'  84.245
                                    'search_title'  'matsu':1 'midori':3 'no':2
                                   'search_artist'  'blue':4 'his':3 'jeans':5 'takeshi':1 'terauchi':2
                                  'search_release'  'rashomon':1
                                     'search_rest'  '00asia':1 '04':3,4 '1972':2 'pop':6 'rock':5 'surf':7
                                    'search_combo'  '00asia':10 '04':12,13 '1972':11 'blue':7B 'his':6B 'jeans':8B 'matsu':1A 'midori':3A 'no':2A 'pop':15 'rashomon':9C 'rock':14 'surf':16 'takeshi':4B 'terauchi':5B
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['surf', 'instrumental', 'turntable', 'rock', 'eleki']
                                        'tag_date'  1972
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736837.8816943  (2021-05-11 14:40:37)
                             'size'  8351353