Question: Which epic poem was "Ave Maria" loosely based on, which is used by Wilfred Jackson in Walt Disney's "Fantasia"?
Sentence (from "Wilfred Jackson"): Wilfred Jackson (Chicago, Illinois, January 24, 1906 – Newport Beach, California, August 7, 1988) was an American animator, arranger, composer and director best known for his work on the "Mickey Mouse" and "Silly Symphonies" series of cartoons and the two segments "Night on Bald Mountain" and "Ave Maria" of "Fantasia" from Walt Disney Productions.
Relevant evidence: Yes