======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '409'
                                          'artist'  'Bellini'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Casta diva'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '145.8'
                                             'key'  'D#m'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '145.8'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Casta diva'
'TKEY' (Initial key)                                'D#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Bellini'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBWg56hN21tsUFgo/G4kyAgAGDkoMr9+envww7gAHA+IABi8f1EL68gCHQc4ABiuGAAcaY9rHeeo9OgAHbaA1aARSAAa4sgAKAAZNEpjGvAYL9AVQ2Ra/rgxqEauuYmok2BZaG5nOReYQN6x61qaXC2XmiFIT8gV/WvsEv8TXA7IL0xHL8iffwora6i5Jcgp4='
'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'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'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'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.28 dB'
'TXXX:replaygain_track_peak'                        '0.350853'

========================== row from database ==========================
                                              'id'  1495514
                                            'path'  /data/Music/Other/Pa/Klassiek/Casta diva.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  409
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  8187200
                                           'mtime'  1621094164
                                   'redo_metaread'  0
                                        'rest_str'   Pa Klassiek prerock classical or classical instruments
                                      'tag_artist'  Bellini
                                     'tag_release'  None
                                       'tag_title'  Casta diva
                                             'bpm'  145.8
                                    'search_title'  'casta':1 'diva':2
                                   'search_artist'  'bellini':1
                                  'search_release'  
                                     'search_rest'  'classical':4 'instruments':6 'klassiek':2 'or':5 'pa':1 'prerock':3
                                    'search_combo'  'bellini':3B 'casta':1A 'classical':7 'diva':2A 'instruments':9 'klassiek':5 'or':8 'pa':4 'prerock':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  D#m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094164.2671764  (2021-05-15 17:56:04)
                             'size'  8187200