One of Canada’s pre-eminent chamber ensembles, Duo Concertante-violinist Nancy Dahn and pianist Timothy Steeves-is celebrated internationally for its expressive depth and remarkable musical unity. They open the program with Luigi Dallapiccola’s Tartiniana Seconda, a brilliant reimagining of Baroque violin music, and a sonata by Ludwig van Beethoven in this Beethoven anniversary year. Vince Ho’s playful Donut Suite adds dazzling wit before the second half, when they join the dynamic Dior Quartet for the sweeping romanticism of Ernest Chausson’s magnificent Concerto for violin, piano, and string quartet.