======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '146'
                                          'artist'  'Egerlander Musikanten'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Amboss polka'
                                           'quals'  ("['Q-OLDST-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'Q-HAP-3', 'Q-SYN-1', "
 "'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-unsorted'
                                             'bpm'  '143.9'
                                             'key'  'G#m'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.9'
'TCON' (Content type, a.k.a. Genre)                 'loc-unsorted'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Amboss polka'
'TKEY' (Initial key)                                'G#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Egerlander Musikanten'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBWgWMmxirzrl3hOFAyzcGgAGA1IACLXGcJgAqgQnkZIABgAEsJK31gAHqHpGfhUuAAbqfGgTH84ABgAGnYSSN8kaqo6CegAKAAZfdrzTJR4bC95hJFoU+gWKBlxPLnn8DuIAt5laHUoNwEw2y4YAB1JKLbYMygAHHjh9R3d+AAYDNpBwRFu/Nro+oSYACgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'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'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.818756'

========================== row from database ==========================
                                              'id'  1495017
                                            'path'  /data/Music/Other/Pa/Volksmuziek/Egerlander Musikanten/Amboss polka.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  146
                                           'genre'  loc-unsorted
                                        'filesize'  2928113
                                           'mtime'  1621354408
                                   'redo_metaread'  0
                                        'rest_str'   Pa Volksmuziek loc unsorted
                                      'tag_artist'  Egerlander Musikanten
                                     'tag_release'  None
                                       'tag_title'  Amboss polka
                                             'bpm'  143.9
                                    'search_title'  'amboss':1 'polka':2
                                   'search_artist'  'egerlander':1 'musikanten':2
                                  'search_release'  
                                     'search_rest'  'loc':3 'pa':1 'unsorted':4 'volksmuziek':2
                                    'search_combo'  'amboss':1A 'egerlander':3B 'loc':7 'musikanten':4B 'pa':5 'polka':2A 'unsorted':8 'volksmuziek':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  G#m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', '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-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621354407.7575955  (2021-05-18 18:13:27)
                             'size'  2928113