Prelude & Fugue in C; Allegro in g; Fugue in g; Fantasy in f K. 608; Fantasy (Toccata) in C; Adagio in b; Fantasy in d; Intrada & Fugue in D Although Mozart never actually composed anything for the organ, he declared to his father that “the organ is my great passion.” Included here are the well-known pieces Mozart was commissioned to compose for mechanical clockwork organs as well as other pieces that seem to be composed for the generic keyboard. Ursula Emile-Ossenkop plays the 1951 Steinmeyer organ of Norddentschen Rundfunks.