Question: What nationality is the composer of song I Ain'T Got Nothin' But The Blues?
Sentence (from "Duke Ellington"): Edward Kennedy "Duke" Ellington (April 29, 1899 – May 24, 1974) was an American composer, pianist, and leader of a jazz orchestra, which he led from 1923 until his death over a career spanning more than six decades.
Relevant evidence: Yes