======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '148'
                                          'artist'  'Save Ferris'
                                     'text_people'  ''
                                         'release'  'It Means Everything'
                                           'title'  'Spam'
                                           'quals'  "['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '105.3'
                                             'key'  'E m'  (9A)
                                        'acoustid'  ''
rest: ''

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

'POPM:\x01ÿþ0'                                      POPM(email='\x01ÿþ0', rating=0, count=0)
'PRIV:www.mexp.dk:\x01\x06\x00\x00\x00\x003star'    PRIV(owner='www.mexp.dk', data=b'\x01\x06\x00\x00\x00\x003star')
'TALB' (Album/Movie/Show title)                     'It Means Everything'
'TBPM' (BPM (beats per minute))                     '105.3'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'Spam'
'TKEY' (Initial key)                                'E m'
'TPE1' (Lead performer(s)/Soloist(s))               'Save Ferris'
'TRCK' (Track number/Position in set)               '9'
'TXXX:MusicMagic Data'                              'AgEAWnrDoOKS17cLhJT4MVaugAGB9Igi3+idnlPl1o8F2oABgvPvMLKGptvfMfG2gXGAARvSg/g3H+MYhFzD3/+KBfe8ounHgAKAAZ8DmRy3IINgI5sqK4BOgjWGKvJJnQZTcrO6BDWV84os/uizE+ihvQrQSYPMhqgbHo7lPIrYuow5xlkFrAHXs83sdIprgJY='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '3'

========================== row from database ==========================
                                              'id'  1538631
                                            'path'  /data/Music/Other/PrevSet/[0yay1]/Save Ferris/Spam.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  148
                                           'genre'  
                                        'filesize'  3574974
                                           'mtime'  1657674846
                                   'redo_metaread'  0
                                        'rest_str'   PrevSet [0yay1]
                                      'tag_artist'  Save Ferris
                                     'tag_release'  It Means Everything
                                       'tag_title'  Spam
                                             'bpm'  105.3
                                    'search_title'  'spam':1
                                   'search_artist'  'ferris':2 'save':1
                                  'search_release'  'everything':3 'it':1 'means':2
                                     'search_rest'  '0yay1':2,3 'prev':4 'prevset':1 'set':5
                                    'search_combo'  '0yay1':8,9 'everything':6C 'ferris':3B 'it':4C 'means':5C 'prev':10 'prevset':7 'save':2B 'set':11 'spam':1A
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  E m
                                           'quals'  ['q-bass-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3']
                                      'lastfmtags'  []
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1657674846.1980996  (2022-07-13 03:14:06)
                             'size'  3574974