 Its authorship is still disputed, however, and other composers have been proposed as the symphony's true author, including Joseph Haydn's younger brother Michael Haydn, who purportedly contributed movements to the work.Recent research on a newly found manuscript suggests the Austrian Benedictine monk Edmund Angerer (1740–1794) to be the author.If Angerer's manuscript (from 1765, entitled "Berchtolds-Gaden Musick") is the original, the Toy Symphony was originally written not in G but rather in C. These findings, however, are disputed among scholars.