NORTH CREEK Upper Hudson Musical Arts wishes to announce a performance by the violin, cello and piano trio, Trio Casals Saturday, Sept. 6 at 7:30 p.m. at the Tannery Pond Community Center in North Creek. The group will perform works by Ludwig van Beethoven, Astor Piazzolla and Johannes Brahms. Tickets are $15 for adults and $5 for students. For more information call (518) 251-3751. The concert is made possible in part with funds from the New York State council on the Arts, a State agency.