Raleigh Chamber Music Guild sponsors the American Chamber Players concert in Raleighs Fletcher Opera Theater on Sunday. Together for 27 years, the group is often heard on NPR and on concert series across the country. Their program here includes piano quartets by Mozart and Bridge, plus a Weber trio for flute, cello and piano and a set of variations by Duruflé for flute, viola and piano. 3 p.m. $25 (students $10). Details: rcmg.org.
• Saturday: Chapel Hill’s Voices community chorus offers its Voices ensemble in works by Renaissance composers William Byrd and Orlando Gibbons, plus two motets by J. S. Bach. Holy Trinity Lutheran Church, Chapel Hill. 7:30 p.m. $15 (students $6). Details: voiceschapelhill.org.
• Saturday: The Ciompi Quartet’s second concert of the season includes Brahms’ String Quartet No. 3, American composer Joel Feigin’s “Mosaic in Two Panels” and Beethoven’s Septet, with guest instrumentalists. Baldwin Auditorium, Duke University. $15-$20 (students $10). Details: