The three British composers in this program all found very different ways to integrate the harmonica with that most aristocratic of ensembles, the string quartet. Gordon Jacob’s Divertimento is a delicious musical tableau, full of his characteristic melodic ease and playfulness. James Moody was devoted to the harmonica, for which he wrote a number of works, and his Quintet has a Classical structure that includes both highly virtuosic and deeply introspective episodes. Renowned as a jazz drummer, Tony Kinsey adopted a late-Romantic stance in his Quintet but also looked to Gershwin and Piazzolla, ending the work with the blues and an unforgettably catchy riff.