Hindemith (1895-1963) was a German composer, whom many have heard of without having CD's of him in their collection. Their miss. I had wanted to post his beautiful vocal work When lilacs last in the dooryard bloom'd (A Requiem for those we love), but there is no good complete version on YouTube. Well, his neoclassical symphony Mathis der Maler from 1934 (based on the opera of the same name) is equally beautiful. Relevant links below.