On April 7, The Baden-Baden Osterfestpiele will open with a new production of Puccini’s “Tosca.” The production will be directed by Philipp Himmelmann, who is best known for his work in Verdi’s “Don Carlo” in Berlin and Puccini’s “Tosca” at the Bregenz festival. Sir Simon Rattle returns to conducting duties after leading Baden-Baden’s production of Puccini’s “Manon Lescaut” in 2014. {…}