======================== unified (from filesystem) ========================
                                         'bitrate'  '204.294'
                                        'duration'  '210'
                                          'artist'  'MONGOL 800'
                                     'text_people'  ''
                                         'release'  'MESSAGE'
                                           'title'  'Song for you'
                                           'quals'  ("['Q-HAP-3', '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-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese', 'j-rock', 'punk', 'j-punk', 'okinawa']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jrock'
                                             'bpm'  '134.824'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         '                            '
'TALB' (Album/Movie/Show title)                     'MESSAGE'
'TBPM' (BPM (beats per minute))                     '134.824'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jrock']
'TDRC' (Recording time)                             '2001'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['', '']])
'TIT2' (Title/songname/content description)         'Song for you'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'MONGOL 800'
'TPE2' (Band/orchestra/accompaniment)               'MONGOL 800'
'TPUB' (Publisher)                                  '‚s‚‰‚“‚“‚•‚…\x81@‚e‚’‚…‚\x81‚‹\x81@‚q‚…‚ƒ‚\x8f‚’‚„‚“\x81^ƒnƒCƒEƒF'
'TRCK' (Track number/Position in set)               '02'
'TSSE' (Software/Hardware and settings used for encoding)  ('Audiograbber 1.83.01, LAME dll 3.96, VBR 1 (Default method), Joint Stereo, '
 'Normal quality')
'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', 'j-rock', 'punk', 'j-punk', 'okinawa']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.70 dB'
'TXXX:replaygain_track_peak'                        '0.404624'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6ae1a852-8ec5-4011-a75c-2972023d882e')

========================== row from database ==========================
                                              'id'  1237774
                                            'path'  /data/Music/Bulk/00localcharacter/MONGOL 800/MESSAGE/02 Song for you.mp3
                                         'working'  None
                                         'bitrate'  204
                                    'duration_sec'  210
                                           'genre'  loc-asia-japan;loc-asia-japan-jrock
                                        'filesize'  5459878
                                           'mtime'  1637020152
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 02 loc asia japan;loc asia japan jrock
                                      'tag_artist'  MONGOL 800
                                     'tag_release'  MESSAGE
                                       'tag_title'  Song for you
                                             'bpm'  134.824
                                    'search_title'  'for':2 'song':1 'you':3
                                   'search_artist'  '800':2 'mongol':1
                                  'search_release'  'message':1
                                     'search_rest'  'asia':2 'japan':3,5,7 'jrock':8 'loc':1,4,6
                                    'search_combo'  '800':5B 'asia':8 'for':2A 'japan':9,11,13 'jrock':14 'loc':7,10,12 'message':6C 'mongol':4B 'song':1A 'you':3A
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['japanese', 'j-rock', 'punk', 'j-punk', 'okinawa']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637020152.3477476  (2021-11-16 00:49:12)
                             'size'  5459878