The Gala presented by the Deutsche Oper Berlin in 2011 in support of Aids-related charities brought together the cream of Europe’s opera singers, in a programme of well-lover operatic excerpts, from Rossini, through Verdi to Wagner. Conducting was…

She is a piano legend, he has collaborated as a soloist with all leading conductors and orchestras around the world. Now Martha Argerich and Guy Braunstein come to the Pierre Boulez Saal with their first-ever duo program—an artistic encounter that…