Salt Lake Symphony winds up its 2014-2015 season with a collaboration with Utah Voices for a performance of Haydn’s The Creation. What do you get when you ask the most prolific composer in the Classical era to compose music for an anonymous libretto about the creation of the world? Haydn’s Creation (Die Schöpfung). The libretto was first given to the great Baroque composer, Händel, but it was not seriously attempted until Haydn’s commission in 1797. The result is a monumental creation in and of itself, taking texts from the Book of Genesis, Psalms and Milton’s Paradise Lost.