They were the greatest pianist-composers of their time, almost exact contemporaries, and friends: Franz Liszt and Frédéric Chopin. Having met soon after Chopin arrived in Paris in 1831, they made music together in public several times. They were a study in contrasts – Liszt at the height of his extroverted, virtuoso period, Chopin introverted, delicate, almost a salon pianist. The two men had one trait in common: they composed hardly any chamber music. On “Cantique d’amour,” cellist Sung-Won Yang is joined by his recital partner, Italian pianist Enrico Pace, for a program of arrangements and Chopin’s Cello Sonata.