Four string instruments along with a piano will blend their sounds in concert this weekend in Demorest. The Piedmont Camerata chamber ensemble will perform at 4 p.m. Sunday, May 31, at the college chapel at 992 Central Ave., Demorest. The ensemble includes David Peyton, cello; Jeri-Mae G. Astolfi, piano; Heather Baird Strachan, violin; Rachael Fischer, violin; and Megan Chisom Peyton, viola.