[PW] Ebony slang for Clarinet

[Barbara & George Grenier]

Hi all

Doing the hard 150 question trivia quiz again.  Pretty sure of answer but 
looking for proof.

What was the surname of the 19th-20th century composer who, during the 
1940s, composed a clarinet concerto for jazz musician Woody Herman, with 
the one-word title of the piece being derived from a jazz slang term for 
the clarinet?

Had no trouble finding the Stravinsky concerto "Ebony"  Spent a lot of time 
looking for another and did not find one to fit question.

Can not find that Ebony is a nickname for a clarinet.

Barbara