======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '183'
                                          'artist'  'Shirley'
                                     'text_people'  ''
                                         'release'  'Bach'
                                           'title'  'Bach  bijvoorbeeld'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-2', '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'  '143.3'
                                             'key'  'F m'  (4A)
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bach'
'TBPM' (BPM (beats per minute))                     '143.3'
'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)         'Bach  bijvoorbeeld'
'TKEY' (Initial key)                                'F m'
'TPE1' (Lead performer(s)/Soloist(s))               'Shirley'
'TPE2' (Band/orchestra/accompaniment)               'Shirley'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEBXRr/gt2cdLGwg6O3DDjGgAGBTYB1Akah8uasgAHhkKvkgAEVHq+3gAHS04EehV6AAaggx5+ijYABgAHgLhALygixBZlAgAKAAZE0kRm4aIMJApE+kq9IgriCv80Fk/ZALr7i4Cir5ID90POxwL7+642kZIN1kRPKKo2c5ff0BIAM3F/39Al5rWO4kpoQiho='
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.10 dB'
'TXXX:replaygain_track_peak'                        '0.704688'

========================== row from database ==========================
                                              'id'  1495426
                                            'path'  /data/Music/Other/Pa/Klassiek/Shirley/Bach bijvoorbeeld.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  183
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  3675893
                                           'mtime'  1621094167
                                   'redo_metaread'  0
                                        'rest_str'   Pa Klassiek prerock classical classical instruments
                                      'tag_artist'  Shirley
                                     'tag_release'  Bach
                                       'tag_title'  Bach  bijvoorbeeld
                                             'bpm'  143.3
                                    'search_title'  'bach':1 'bijvoorbeeld':2
                                   'search_artist'  'shirley':1
                                  'search_release'  'bach':1
                                     'search_rest'  'classical':4 'instruments':5 'klassiek':2 'pa':1 'prerock':3
                                    'search_combo'  'bach':1A,4C 'bijvoorbeeld':2A 'classical':8 'instruments':9 'klassiek':6 'pa':5 'prerock':7 'shirley':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  F 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-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094167.2661996  (2021-05-15 17:56:07)
                             'size'  3675893