======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '407'
                                          'artist'  'Bob Dylan'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Chimes of freedom'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-1', 'q-drums-1', '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'  '4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-rock'
                                             'bpm'  '128.2'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '31122B13+349021+19+150+17549+31409+41742+72286+92632+109063+128635+147383+166120+201545+216778+230120+261702+275869+289629+304218+320417+335243'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '4'
'TBPM' (BPM (beats per minute))                     '128.2'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-rock'
'TIT2' (Title/songname/content description)         'Chimes of freedom'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bob Dylan'
'TRCK' (Track number/Position in set)               '4'
'TXXX:MusicMagic Data'                              'AgEBXi9Bi2unZbvvgjoazUuagAGEoZjWHAWo5ir/gAHbJKSTqTMnj6wtgAHdGJWVkZakk8894gj21oABgAGt+g70IybGfrAlgAKAAZwtoYasWYKT8lM/C4N1g4+UagT0oIArboEc8aiZS5RaDiKug4prveGhLYRjkcXk1rLG/fGbfIIvs0kErPb1uAa/Kom2gzA='
'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'                                      '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.62 dB'
'TXXX:replaygain_track_peak'                        '0.510533'

========================== row from database ==========================
                                              'id'  1495392
                                            'path'  /data/Music/Other/Pa/All/Bob Dylan/Chimes of freedom.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  407
                                           'genre'  ifs-songwriter-rock
                                        'filesize'  8155279
                                           'mtime'  1636135093
                                   'redo_metaread'  0
                                        'rest_str'   Pa All ifs songwriter rock
                                      'tag_artist'  Bob Dylan
                                     'tag_release'  None
                                       'tag_title'  Chimes of freedom
                                             'bpm'  128.2
                                    'search_title'  'chimes':1 'freedom':3 'of':2
                                   'search_artist'  'bob':1 'dylan':2
                                  'search_release'  
                                     'search_rest'  'all':2 'ifs':3 'pa':1 'rock':5 'songwriter':4
                                    'search_combo'  'all':7 'bob':4B 'chimes':1A 'dylan':5B 'freedom':3A 'ifs':8 'of':2A 'pa':6 'rock':10 'songwriter':9
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  5B
                                           '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-1', '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'  1636135093.1098645  (2021-11-05 18:58:13)
                             'size'  8155279