Before I revisit my response to the Carter Piano and Violin Concertos, I feel the need to calibrate my general reaction to concertos. So, I've been listening to various works -- a couple of Haydn violin concertos, Ellen Taafe Zwilich's Piano Concerto, some random Vivaldi, and just now, Peter Lieberson's Piano Concerto. After listening to Lieberson's, I'll admit that during the second movement my attention wandered to my software configuration management crisis du jour. But the orchestra in the third movement was sufficiently colorful and fresh that I realize I want to go back and pay closer attention to Peter Serkin's playing to get the full experience.