Lukas Foss (1922 -   )

An American, began his compositional career as a neoclassicist.  After approximately 1960, his interest in improvisation led him to explore various aspects of indeterminacy.  "Time Cycle" (1960), for soprano and orchestra, has been recorded and enjoys considerable success.  His "Baroque Variations" (1967) plays on compositions by Handel, Scarlatti, and Bach.