During two Bartok evenings at the Verbier Festival, Martha Argerich demonstrated once again her charisma. The first evening, with her accomplice Nelson Freire, and with the percussionists Gregory Zuber and Michael Israelievitch, she transports us with the Sonata for Two Pianos and Percussions. A few days later, with violinist Renaud Capuçon she tackles the First Sonata for Violin and Piano.