Michael Tilson Thomas--Phila. Improv Festival--Philadelphia Virtuosi--Avenue of the Artists

Jim Cotter speaks with Michael Tilson Thomas. The music director of the San Francisco Symphony and artistic director of the New World Symphony conducts the Philadelphia Orchestra in concerts this week.

Jason Peifer previews the Philadelphia Improv Festival, an annual event that highlights the growth in unscripted comedy in the region.

David Patrick Stearns profiles the Philadelphia Virtuosi Chamber Orchestra.

Susan Lewis visits the Sketch Club and the Plastic Club on Philadelphia's Camac Street - the Avenue of the Artists.

More Information:

• Michael Tilson Thomas
• Philadelphia Improv Festival 2008
• Philadelphia Virtuosi Chamber Orchestra
• Plastic Club
• Sketch Club