======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '160'
                                          'artist'  'Andre van Duin'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Luister nou even naar mij'
                                           'quals'  ("['Q-HAP-3', 'Q-BUSY-3', 'Q-GRIT-1', 'Q-PLAY-1', 'q-bass-1', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['dutch', 'comedy', 'humor', 'all', 'nederlandstalig']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-netherlands'
                                             'bpm'  '145.4'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.4'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-netherlands'
'TIT2' (Title/songname/content description)         'Luister nou even naar mij'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Andre van Duin'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEAAAAAgs+bUrlyhClU/C3GgAGAPYQSFv2zo/BTgAH7T6STgvMqoOF8gAH2doKLhHWAAbdaqt3BCoABgAGjrwisy+GkppsagAKAAYo8mnarYYLgFnkpE4JqgTyGVAKZptsfXIV961abLIjWEqnJaIr07iqWO4KMinTSb6wK8QKczYHisxUDm/SfvRa04IACgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '1'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:lastfmtags'                                   ['dutch', 'comedy', 'humor', 'all', 'nederlandstalig']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.39 dB'
'TXXX:replaygain_track_peak'                        '0.508768'

========================== row from database ==========================
                                              'id'  1495109
                                            'path'  /data/Music/Other/Pa/Nederlands/Andre van Duin/Luister nou even naar mij.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  160
                                           'genre'  loc-eur-netherlands
                                        'filesize'  3223485
                                           'mtime'  1621637489
                                   'redo_metaread'  0
                                        'rest_str'   Pa Nederlands loc eur netherlands
                                      'tag_artist'  Andre van Duin
                                     'tag_release'  None
                                       'tag_title'  Luister nou even naar mij
                                             'bpm'  145.4
                                    'search_title'  'even':3 'luister':1 'mij':5 'naar':4 'nou':2
                                   'search_artist'  'andre':1 'duin':3 'van':2
                                  'search_release'  
                                     'search_rest'  'eur':4 'loc':3 'nederlands':2 'netherlands':5 'pa':1
                                    'search_combo'  'andre':6B 'duin':8B 'eur':12 'even':3A 'loc':11 'luister':1A 'mij':5A 'naar':4A 'nederlands':10 'netherlands':13 'nou':2A 'pa':9 'van':7B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-3', 'Q-GRIT-1', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-1', 'q-bass-1']
                                      'lastfmtags'  ['dutch', 'comedy', 'humor', 'all', 'nederlandstalig']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621637488.5759237  (2021-05-22 00:51:28)
                             'size'  3223485