======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '259'
                                          'artist'  'Bob Dylan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'North Country blues'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', 'q-drums-2', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-2', 'Q-BUSY-3', 'Q-CHART-4', "
 "'Q-JZFKS-2', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '05'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock'
                                             'bpm'  '121.9'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '4C11A814+339176+20+150+13811+35478+65910+77246+96672+111591+113313+132962+146864+171289+194950+208404+225571+237492+246488+260205+292957+312564+325753'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '5'
'TBPM' (BPM (beats per minute))                     '121.9'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'North Country blues'
'TKEY' (Initial key)                                '3B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TRCK' (Track number/Position in set)               '05'
'TXXX:MusicMagic Data'                              'AgEBYlJxm46ZlaKNgdRCmkrYgAGBbJL49BaefjG9gAHAnIABheQMqLbEgAH+3YD2iiSAAa9s2mu7YYABgAERuvqh4UekYp4CgAKAAZgNoYirGYKU+Nw5qIIDgvWUDgq/onwlGYC77J6UEZPZFbuu1YZExAOZJoS3kcXVjbnv7WCUkYDZsecGku+1s++0koOLgG0='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '4'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+3.59 dB'
'TXXX:replaygain_track_peak'                        '0.846729'

========================== row from database ==========================
                                              'id'  1495185
                                            'path'  /data/Music/Other/Pa/All/Bob Dylan/North Country blues.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  259
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  5187984
                                           'mtime'  1636135102
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter rock
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  None
                                       'tag_title'  North Country blues
                                             'bpm'  121.9
                                    'search_title'  'blues':3 'country':2 'north':1
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'rock':5 'songwriter':4
                                    'search_combo'  'all':7 'blues':3A 'bob':4B 'country':2A 'dylan':5B 'ifs':8 'north':1A 'pa':6 'rock':10 'songwriter':9
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-2', 'Q-JZFKS-2', 'Q-CHART-4', 'q-drums-2', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636135101.9861517  (2021-11-05 18:58:21)
                             'size'  5187984