Just a short note to say you should book your free tickets for the upcoming Prism Saxophone Quartet concerts at Penn right away - Rose Recital Hall is not that big, and we are issuing tickets to keep track of the head count. Go here to reserve tickets. The concerts are Friday, March 18 and Saturday, March 19, both at 7:30, and will feature music by Penn faculty, students and alums. My own Stratigraphy, with pianist Marilyn Nonken joining the members of Prism, will be heard at the Saturday concert.