There’s already a waiting list, so draw your own conclusion. As a soloist, the piano virtuoso Martha Argerich has precious few peers, but it gets lonely up there. So, whenever possible, she makes chamber music with friends at her own starry level, including, on this occasion, Stephen Kovacevich, Akane Sakai, Tedi Papavrami, Raphaëlle Moreau, Gérard Caussé, and Edgar Moreau. —L.J.