WEEKENDER GUIDE
By C. Gerald Fraser
Friday MUSICIANS SALUTE MONK The late pianist and composer Thelonious Monk often used an expression - ''two is one'' - by which, Motoe Shiratori explains, Mr. Monk defined the ''unity inherent in jazz.'' Miss Shiratori is producing a concert tribute to Monk called ''Two Is One'' tonight at 8 at Town Hall, 123 West 43d Street. Part of the bill will feature the pianist Abdullah Ibrahim, also known as Dollar Brand, and Carlos Ward, alto saxophonist and flutist. The program's other aspect includes two men who worked with Monk, the tenor saxophonist Charlie Rouse and the drummer Ben Riley, who form the quartet Sphere with Buster Williams, bassist, and Kenny Barron, pianist. Admission is $8 to $15. Information: 840-2824 (box office). SUPER CRAFTS SHOW ON L.I. More than 800 artisans will offer their works, and some will show their skills, today through Sunday at an event billed as the largest craft show on the East Coast: the ninth Harvest Crafts Festival at the Nassau Coliseum in Uniondale, L.I. For instance, there will be demonstrations of pottery, jewelry and candlemaking, pewter smithing, woodcarving, clay sculpture and glassblowing. The festival is on from 6 to 10 tonight, 11 A.M. to 10 P.M. tomorrow and 11 to 7 on Sunday. Admission: $3.50 ($1.50 for children, free for under-6's). On Hempstead Turnpike, off Exit M4 of the Meadowbrook Parkway. Information: (516) 794-9497. TRIBAL ARTS CELEBRATION