On the first night of a new Royal Opera House production of Martinu's The Greek Passion, Sean Rafferty talks to its director, David Pountney, about this powerful 20th-century drama. Music includes at 5.35 Khandoshkin's Variations on Russian Folk Tunes performed by Musica Petropolitana; at 5.50 Sibelius's Suite Mignonne performed by the Gothenburg Symphony Orchestra under Neeme Jarvi; and at 6.50 Chabrier's Bourree Fantasque played by Alain Planes (piano).