Duke Ellington had made about 50 albums under his name before he got around to recording a trio album, Money Jungle, with bassist Charles Mingus and drummer Max Roach. It was 1962, and Ellington was 63, a revered titan of the music with so many masterpieces behind him that listeners could be excused for not expecting him to deliver yet another one — indeed, one that would come to be seen as an all-time classic of the jazz trio art.