After another round of chemotherapy, Russian baritone Dmitri Hvorostovsky is back on stage, starting today a tour in Germany with War, Peace, Love and Sorrow concerts Joined by long-time musical partner Constantine Orbelian, Hvorostovsky headlines a program with songs of War, Peace, Love and Sorrow. The tour begins in Frankfurt. Next month Hvorostovsky is scheduled to sing in Riga, Barcelona and Paris and Giorgio Germont at the Vienna State Opera.