Our guest on StudioTulsa is Gerhardt Zimmermann, who will be the guest conductor for the Tulsa Symphony Orchestra tomorrow night, Saturday the 2nd, at the Tulsa PAC. On the program will be the famous, intense, controversial, and overtly political Symphony No. 7 by Dmitri Shostakovich -- also known as the "Leningrad Symphony." For more information, including ticket details, please go to tulsasymphony.org.