======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '322'
                                          'artist'  'Sakurai Atsushi'
                                     'text_people'  ''
                                         'release'  'Unknown Album (12/25/2004 1:23:32 PM)'
                                           'title'  'Smell'
                                           'quals'  ("['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-3', 'q-play-3', 'q-chart-2', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-2']")
                                      'lastfmtags'  "['j-rock', 'japanese', 'visual kei', 'rock', 'atsushi sakurai']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock-visualkei;set-pl-sced'
                                             'bpm'  '133.756'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000040D 000003FE 00001A52'
'COMM:iTunNORM:eng'                                 (' 0000040D 000003FE 00001A52 0000195F 0002230E 00024A07 000058D4 0000569F '
 '00041EC7 00041EDE')
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x001\x00+\x009\x006\x00+\x004\x009\x005\x008\x00+\x008\x009\x003\x00F\x00+\x001\x001\x009\x009\x005\x00+\x001\x005\x008\x005\x002\x00+\x001\x009\x00B\x00E\x00F\x00+\x001\x00F\x00A\x009\x00A\x00+\x002\x003\x009\x007\x002\x00+\x002\x008\x009\x004\x004\x00+\x002\x00D\x001\x004\x00F\x00+\x003\x003\x008\x007\x005\x00+\x003\x009\x003\x008\x007\x00+\x003\x00D\x00F\x00B\x000\x00+\x004\x003\x003\x00E\x008\x00+\x004\x008\x003\x006\x008\x00+\x004\x00C\x00A\x00E\x000\x00+\x005\x003\x004\x004\x006\x00+\x005\x007\x00A\x004\x00F\x00\x00\x00')
'PRIV:AverageLevel:#\x13\x00\x00'                   PRIV(owner='AverageLevel', data=b'#\x13\x00\x00')
'PRIV:PeakValue:¨K\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa8K\x00\x00')
'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')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Unknown Album (12/25/2004 1:23:32 PM)'
'TBPM' (BPM (beats per minute))                     '133.756'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock-visualkei', 'set-pl-sced']
'TIT2' (Title/songname/content description)         'Smell'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '323133'
'TPE1' (Lead performer(s)/Soloist(s))               'Sakurai Atsushi'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['j-rock', 'japanese', 'visual kei', 'rock', 'atsushi sakurai']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.89 dB'
'TXXX:replaygain_track_peak'                        '0.482836'

========================== row from database ==========================
                                              'id'  408056
                                            'path'  /data/Music/Bulk/00localcharacter/Sakurai Atsushi/Sakurai Atsushi - Smell.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  322
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock-visualkei;set-pl-sced
                                        'filesize'  5159742
                                           'mtime'  1620348135
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter loc asia japan;loc asia japan jrock visualkei;set pl sced
                                      'tag_artist'  Sakurai Atsushi
                                     'tag_release'  Unknown Album (12/25/2004 1:23:32 PM)
                                       'tag_title'  Smell
                                             'bpm'  133.756
                                    'search_title'  'smell':1
                                   'search_artist'  'atsushi':2 'sakurai':1
                                  'search_release'  '1':7 '12':3 '12252004':6 '12332':10 '2004':5 '23':8 '25':4 '32':9 'album':2 'pm':11,12 'unknown':1
                                     'search_rest'  'asia':2 'japan':3,5,7 'jrock':8 'loc':1,4,6 'pl':13 'sced':14 'set':10,12 'visualkei':9,11
                                    'search_combo'  '1':10C '12':6C '12252004':9C '12332':13C '2004':8C '23':11C '25':7C '32':12C 'album':5C 'asia':17 'atsushi':3B 'japan':18,20,22 'jrock':23 'loc':16,19,21 'pl':28 'pm':14C,15C 'sakurai':2B 'sced':29 'set':25,27 'smell':1A 'unknown':4C 'visualkei':24,26
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['j-rock', 'japanese', 'visual kei', 'rock', 'atsushi sakurai']
                                        'tag_date'  
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620348134.997539  (2021-05-07 02:42:14)
                             'size'  5159742