A number of musicians will come together to play a benefit concert for the Haight Ashbury Free Clinics next month. The performance will take place at San Francisco’s Great American Music Hall on June 17. The event, which is billed as “a rock concert worthy of their strong musical heritage that would make their founding benefactor Bill Graham proud,” will bring together Moonalice, Eoin Harrington and original Country Joe & the Fish guitarist Barry “The Fish” Melton. Additional guests are expected.