The Prism Saxophone Quartet has been presenting a series of concerts with commissions by leading jazz saxophonists, and one more is coming next week. At the World Cafe in Philadelphia, they will play music by Greg Osby and David Liebman, Wednesday, June 11 at 7:30, with the program repeated the next day at Symphony Space, in NYC, also at 7:30. Here’s a sample of a rehearsal – lots more videos on the project here.