Sorry about posting the wrong pianist in Bernstein. The Record I have at home has Zimmerman playing and I thought that was what I was posting. It has a very interesting introduction with Bernstein talking about the symphony and what his goal was in writing it.
If you like Brahms' 2nd Piano concerto, let me recommend Geza Anda with Frenec Fricsay conducting. I own the recording of Rubenstein and it never really moved me. But Geza Anda and Fricsay brought it to life for me.

