======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '157'
                                          'artist'  'Randy Newman'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Guilty'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-2', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-2', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '03'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '143.3'
                                             'key'  '2B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_TrackNumber:eng'                  '3'
'TBPM' (BPM (beats per minute))                     '143.3'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'Guilty'
'TKEY' (Initial key)                                '2B'
'TPE1' (Lead performer(s)/Soloist(s))               'Randy Newman'
'TRCK' (Track number/Position in set)               '03'
'TXXX:MusicMagic Data'                              'AgEBXlh9koeszc5qhqXxBzWQkveCkIK3CwqZ5gekgAH41aSTgAEPIKyOgAG6vosrg9CAAcP39tGzEoABgAHGmhae09i3f6ZWgAKAAZRGrM/Mo4Z09XU0/a0Wgx+ETALHmm8Y4oDG3gmZm4S3BiWuaYpdyV+GtoVzg6q1PAw5yRyazIBgsa4HPuQZmZCgg4KOgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.10 dB'
'TXXX:replaygain_track_peak'                        '0.707565'

========================== row from database ==========================
                                              'id'  1495356
                                            'path'  /data/Music/Other/Pa/All/Randy Newman/Guilty.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  157
                                           'genre'  ifs-songwriter
                                        'filesize'  3156977
                                           'mtime'  1637330798
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter
                                      'tag_artist'  Randy Newman
                                     'tag_release'  None
                                       'tag_title'  Guilty
                                             'bpm'  143.3
                                    'search_title'  'guilty':1
                                   'search_artist'  'newman':2 'randy':1
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'songwriter':4
                                    'search_combo'  'all':5 'guilty':1A 'ifs':6 'newman':3B 'pa':4 'randy':2B 'songwriter':7
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-2', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-2', 'Q-HAP-2', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330797.7242043  (2021-11-19 15:06:37)
                             'size'  3156977