Benjamin Britten is one most important British composers from the second half of the twentieth century. Remarkably, he focused on opera, a dying genre, at least in its current form. Britten's contributions however, among which Peter Grimes, The Rape of Lucretia, Gloriana, The Turn of the Screw, and Death in Venice, managed to remain core repertoire for opera companies to this day. Many of these productions included a role for his artistic partner and life companion Peter Pears. Britten also wrote a number of lieder for this tenor, among which his Serenade for tenor, horn and string orchestra. Yet, Britten excelled in many more genres. He wasn't even 20 years old when he composed his brilliant Phantasy for hobo quartet and his friendship with the legendary cellist Rostropovich led to a Cello sonata, three Suites for cello solo and a Symphony for Cello and orchestra in the 1960s.

Britten never became Master of the Queen's Music, yet he surely had feeling for public sentiments. For example, as a pacifist, he taught his people about world peace through his War Requiem from 1962. Britten was an excellent interpreter of his own work, just like Bartók and Stravinsky. Many of his recordings have been matched, but never exceeded.

Claude Debussy was a French composer. He and Maurice Ravel were the most prominent figures associated with impressionist music, though Debussy disliked the term when applied to his compositions. He was made Chevalier of the Legion of Honour in 1903. He was among the most influential composers of the late 19th and early 20th centuries, and his use of non-traditional scales and chromaticism influenced many composers who followed.
Debussy's music is noted for its sensory content and frequent usage of non-traditional tonalities. The prominent French literary style of his period was known as Symbolism, and this movement directly inspired Debussy both as a composer and as an active cultural participant Among his most famous works are his Clair de Lune, his Three Nocturnes and his orchestral piece La Mer.

Next to Arnold Schoenberg and Igor Stravinsky, Béla Bartók was a third seminal innovator of European art music at the start of the twentieth century. Bartók, too, sought a way out of the deadlock of tonal music around 1900, and he found it in folk music. Initially, he tied in with the nationalistic tradition of Franz Liszt with his tone poem Kossuth, but eventually he found his own voice with the rediscovery of the music of Hungarian peasants. Together with Zoltán Kodály he was one of the first to apply the results of folkloric research into his own compositions. One major difference between him and composers of the 19th century, was that Bartók did not adjust to the system of tonality, but created his own musical idiom from folk music. Because of this, his composition style was flexible to other musical trends, without having to violate his own view points. For example, his two Violin sonates come close to Schoenberg's free expressionism, and after 1926 his music started to show neoclassicistic tendencies, comparable to Stravinsky's music. Bartók was not just interested in Hungarian folk music, but could appreciate musical folklore from all of the Balkan, Turkey and North-Africa as well.

George Crumb (b. 1929) is one of the most frequently performed composers in today's musical world. Crumb is the winner of Grammy and Pulitzer Prizes, and continues to compose new scores that enrich the lives of all who come in contact with his profoundly humanistic art. Crumb's music often juxtaposes contrasting musical styles, ranging from music of the western art-music tradition, to hymns and folk music, to non-Western musics. Many of Crumb's works include programmatic, symbolic, mystical and theatrical elements, which are often reflected in his beautiful and meticulously notated scores.