Pierre Boulez and Benjamin Britten are two significant figures in 20th-century classical music, each with a rich body of work.

Pierre Boulez:

1. Le Marteau sans Maître (1953): This is perhaps Boulez's most famous work, a chamber piece that blends various styles and techniques.
2. Notations (1945): A series of short orchestral pieces that showcase his innovative approach to rhythm and structure.
3. Derive I and II (1984): These works are known for their complex textures and use of serialism.
4. Pli selon Pli (1957): A work for soprano and orchestra, noted for its intricate vocal lines and orchestral colors.
5. Anthemes (1991): A piece for solo violin and tape, exploring the relationship between live performance and electronic sounds.

Benjamin Britten:

1. The Young Person's Guide to the Orchestra (1945): This orchestral piece is an introduction to the various instruments of the orchestra, based on a theme by Henry Purcell.
2. Peter Grimes (1945): An opera that established Britten as a leading composer in the opera genre, dealing with themes of isolation and societal rejection.
3. War Requiem (1962): A large-scale choral work that combines the traditional Latin Requiem Mass with texts by Wilfred Owen, reflecting on the horrors of war.
4. A Midsummer Night's Dream (1960): An opera based on Shakespeare's play, known for its magical atmosphere and lyrical melodies.
5. Nocturne (1958): A song cycle for orchestra and tenor, inspired by various poets, capturing the essence of night and its mysteries.

Both composers have contributed significantly to modern music, with Boulez often associated with avant-garde techniques and Britten with a more lyrical and dramatic style.

For more detailed information, you may refer to the following sources:

• Boulez Works
• Britten Works