(I haven't tried it out so I don't know how good it sounds.)
There's also a master's (or phd?) thesis from DIKU (Datalogisk Institut ved Københavns Universitet) from 15-20 years back where a guy "rewired" sounds played on one instrument to sound like they were played on other instruments. I saw his presentation/demonstration back then, and it sounded pretty okay. It's in English and should be available somewhere on DIKU's website. Darned if I can recall the title or the author, though.
http://ems.music.uiuc.edu/beaucham/papers/JAES.10.95.pdf
(I haven't tried it out so I don't know how good it sounds.)
There's also a master's (or phd?) thesis from DIKU (Datalogisk Institut ved Københavns Universitet) from 15-20 years back where a guy "rewired" sounds played on one instrument to sound like they were played on other instruments. I saw his presentation/demonstration back then, and it sounded pretty okay. It's in English and should be available somewhere on DIKU's website. Darned if I can recall the title or the author, though.