======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '193'
                                          'artist'  'Yuri Lane'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Grimm'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['beatbox', 'hip hop', 'human beatbox', 'harmonica']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '01'
                                      'tracktotal'  '03'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '96.392'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '0000005E 0000007C 000008A7 0'
'COMM:iTunNORM:eng'                                 ('0000005E 0000007C 000008A7 0000111C 0001D88D 0000840A 000061FE 00007A7D '
 '0000C03E 0000840A')
'COMM:iTunes_CDDB_1:eng'                            '2001C303+34007+3+150+14657+26839'
'TBPM' (BPM (beats per minute))                     '96.392'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TENC' (Encoded by)                                 'iTunes v4.9'
'TIT2' (Title/songname/content description)         'Grimm'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yuri Lane'
'TRCK' (Track number/Position in set)               '01/03'
'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'                                   ['beatbox', 'hip hop', 'human beatbox', 'harmonica']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+2.69 dB'
'TXXX:replaygain_track_peak'                        '0.919574'

========================== row from database ==========================
                                              'id'  980771
                                            'path'  /data/Music/Bulk/00localcharacter/yuri lane/grimm.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  193
                                           'genre'  loc-unsorted
                                        'filesize'  4645840
                                           'mtime'  1637329995
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter yuri lane grimm loc unsorted
                                      'tag_artist'  Yuri Lane
                                     'tag_release'  None
                                       'tag_title'  Grimm
                                             'bpm'  96.392
                                    'search_title'  'grimm':1
                                   'search_artist'  'lane':2 'yuri':1
                                  'search_release'  
                                     'search_rest'  'grimm':3 'lane':2 'loc':4 'unsorted':5 'yuri':1
                                    'search_combo'  'grimm':1A,6 'lane':3B,5 'loc':7 'unsorted':8 'yuri':2B,4
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-1', 'q-chart-1', 'q-other-1', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['beatbox', 'hip hop', 'human beatbox', 'harmonica']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329994.9155426  (2021-11-19 14:53:14)
                             'size'  4645840