Check out John Mortensen's YouTube channel. https://www.youtube.com/@cedarvillemusic/videos https://www.youtube.com/@cedarvillemusic/videos He can improvise f

Check out John Mortensen's YouTube channel. https://www.youtube.com/@cedarvillemusic/videos https://www.youtube.com/@cedarvillemusic/videos He can improvise fugues on the spot. A lot of earlier composers could do so as well because their training from the get-go was improvisation.