Benjamin Britten Lord Harewood called it "the first genuinely successful British opera, Gilbert and Sullivan apart, since Purcell." Dismayed by the in-fighting among the company, Cross, Britten and Pears severed their ties with Sadler's Wells in December 1945, going on to found what was to become the English Opera Group. A month after the opening of "Peter Grimes", Britten and Yehudi Menuhin went to Germany to give recitals to concentration camp survivors. What they saw, at Belsen most of all, so shocked Britten that he refused to talk about it until towards the end of his life, when he told Pears that
Opera Richard Wagner, and in particular the Tristan chord. Composers such as Richard Strauss, Claude Debussy, Giacomo Puccini, Paul Hindemith, Benjamin Britten and Hans Pfitzner pushed Wagnerian harmony further with a more extreme use of chromaticism and greater use of dissonance. Another aspect of modernist opera is the shift away from long, suspended melodies, to short quick mottos, as first illustrated by Giuseppe Verdi in his "Falstaff". Composers such as Strauss, Britten, Shostakovich and Stravinsky adopted and expanded upon this style. Operatic modernism truly began in the operas of two Viennese composers, Arnold Schoenberg and his student Alban Berg, both composers