MIKE SPRINGER/Staff photo
Violinists Sylvain Favre-Bulle, right, and Nicolas Van Kuijk, members of the Paris-based Van Kujk Quartet, speak to students during a Rockport Music-sponsored performance Wednesday at Veterans Memorial Elementary School in Gloucester. The musicians performed music by Debussy, Ravel and other composers, and explained the role each instrument plays in the quartet. The cellist, Francois Robin, played an instrument made in Milan in 1540 -- one of the oldest known cellos in the world. The internationally known quartet, based in Paris, will perform at 7 p.m. Thursday at the Shalin Liu Performance Center in Rockport.