Question: Richard Strauss and Hans Werner Henze were both what?
Sentence (from "Requiem (Henze)"): Hans Werner Henze composed the nine Sacred Concertos that comprise his Requiem over the course of three years from 1991 to 1993 on commissions from the London Sinfonietta, Suntory Corporation for the NHK Philharmonic, and Westdeutscher Rundfunk, Cologne.
Relevant evidence: No