There is a wonderful version, superbly recorded, by the Academy of St. Martin in the Fields conducted by Sir Neville Marriner that I have on an Argo LP from, I believe, the 1970's. I think it's been reissued on CD, which I've not heard. Other than the Barber it also has excellent performances of work by several other American composers, including, as I recall, Paul Creston and Virgil Thomson.
