A show at the Society Hill Playhouse and a series of weekly happy hours at the Gershwin Y bring Dizzy Gillespie back into the spotlight. Jack McCarthy profiles Dizzy’s years in Philadelphia and the Downbeat club that laid the foundations for his stardom

North Philadelphia’s Tioga Theater, which once hosted jazz greats Dizzy Gillespie and Sarah Vaughan, will be reincarnated as a community-oriented banquet hall