The late trumpeter Roy Campbell Jr.—a fixture of the NYC avant-jazz scene for more than two decades prior to his death in January—was originally scheduled to perform and curate this week at the Stone. Instead, friends, associates and admirers turn up to honor his memory. Performers include the surviving members of Campbell's Tazz band (pianist Andy Bemkey, bassist Chris Sullivan and drummer Mike Thompson), appearing July 8 at 8pm, and Campbell's Other Directions in Music collaborators Daniel Carter, William Parker and Charles Downs, taking the July 8 10pm slot in the company of multi-instrumentalist Matt Lavelle, and saxists Andrew Lamb and Ras Moshe. Other sets feature drummer Ehran Elisha (July 9 at 8pm), saxist Rob Brown (July 10 at 8pm), drummer William Hooker and trumpeter Ted Daniel (July 10 at 10pm), and trumpeter Taylor Ho Bynum (dueting with drummer Tomas Fujiwara and appearing with Nu Band July 12). The July 13 set is an all-improv Stone benefit featuring saxists John Zorn and Louie Belogenis. See thestonenyc.com for the complete lineup.