Jennifer Montone, The Philadelphia Orchestra's newly appointed Principal Horn, joins us for Mozart's Quintet for Horn and Strings, K. 407. The one-hour program begins at 5:30 pm, Friday, September 29th at The Ethical Society of Philadelphia on Rittenhouse Square ("Last Fridays" Series), opening with the Shostakovich String Quartet #6 in G major, celebrating that iconic master's "100th Birthday".