Vibraphonist, composer and Adjunct Associate Professor of Music Jay Hoggard ’76,will perform in the 32nd annual Playboy Jazz Fest, held at the Hollywood Bowl on June 13. Performing as a member of the latest version of emcee Bill Cosby’s “Cos of Good Music” band, Hoggard will be playing with NduguChancellor, Dwayne Bruno, Ingrid Jensen, Mark Gross and D.D. Jackson. The invitation to join the band wasn't really a surprise for Hoggard. He has worked with Cosby before, including on the soundtrack to the Cosby TV show. “When Dr. Cosby calls, I drop everything and I’m there,” says Hoggard. Currently taking…