Early birds can camp out at Central Park’s Rumsey Field for the “Good Morning America” summer concert series, with big names like. 7:30 p.m.; BricArtsMedia.org). Blues-rock legend Gary Clark Jr. pe. Outdoor concerts mark the beginning of the welcome Summer weather. After a long harsh winter, New Yorkers gathered in the sun at Central Park with beers in hand to. Clutch also played new tracks “D. July’s lineup includes jazz…