Alex Ross has a very interesting piece in the New Yorker on composer David Diamond.
Read it here.
Also worth a peek is this interview with Diamond (as well as Crumb and Perle) found here.
I was certain I had a recording of Diamond's Piano Concerto. The disc I thought it on turned out to be a recording of a different composer's work. Digging about further, I can't find any mention of a commerical recording of Diamond's Piano Concerto. If anyone knows of one, let me know. Hopefully the Delos Diamond Series will include it in a future release!