In which country was the composer for Prelude, Fugue, and Riffs born?
Prelude, Fugue, and Riffs: Prelude, Fugue and Riffs is a "written-out" jazz-in-concert hall composition composed by Leonard Bernstein for a jazz ensemble featuring solo clarinet. Leonard Bernstein:  He was among the first conductors born and educated in the US to receive worldwide acclaim.
US