======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '180'
                                          'artist'  'Chris Hinze'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Largo'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-3', '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-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'  '116.9'
                                             'key'  'A m'  (8A)
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '116.9'
'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)         'Largo'
'TKEY' (Initial key)                                'A m'
'TPE1' (Lead performer(s)/Soloist(s))               'Chris Hinze'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBXaCihMy4mpxYgh+xjFyzgAGHV4AC6yuSjiYxgI+wxoABgAHqK77hgAGq+4ABgKaAAcODyD8Lg4ABgAHEYBrV8D+AAa+1gAKAAYaowPXHZ4QBAlQ6EYbagziBogmoo6AP2oAv0lCE4oLz+fi0YIA3whWJxouUgAHE/wfz1r+Gj4VtvdAV/OdgpaioaoACgAE='
'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'                                       '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.466647'

========================== row from database ==========================
                                              'id'  1495282
                                            'path'  /data/Music/Other/Pa/Klassiek/Largo.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  180
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  3612634
                                           'mtime'  1621094166
                                   'redo_metaread'  0
                                        'rest_str'   Pa Klassiek prerock classical or classical instruments
                                      'tag_artist'  Chris Hinze
                                     'tag_release'  None
                                       'tag_title'  Largo
                                             'bpm'  116.9
                                    'search_title'  'largo':1
                                   'search_artist'  'chris':1 'hinze':2
                                  'search_release'  
                                     'search_rest'  'classical':4 'instruments':6 'klassiek':2 'or':5 'pa':1 'prerock':3
                                    'search_combo'  'chris':2B 'classical':7 'hinze':3B 'instruments':9 'klassiek':5 'largo':1A 'or':8 'pa':4 'prerock':6
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  A m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094165.6327643  (2021-05-15 17:56:05)
                             'size'  3612634