The WSU Symphony Orchestra will perform a concert featuring the world-class St. Petersburg String Quartet, quartet-in-residence, in its first year with WSU's School of Music, at 7:30 p.m. Thursday, Oct. 7, at the Wichita Center for the Arts Irene Vickers Baker Theater. The program, which features masterworks from the modern era, will be led by Mark Laycock. Call 978-3233 for tickets.