Louis Andriessen (born Utrecht: June 6, 1939) is a Dutch composer and pianist based in Amsterdam. He teaches composition at the Royal Conservatory of The Hague, and his music is published by Donemus in the Netherlands and Boosey & Hawkes in the United Kingdom. His recordings appear on the Nonesuch Records label. He won the Gaudeamus International Composers Award in 1958. Family and early life Andriessen was born into a musical family, the son of the composer Hendrik Andriessen (1892-1981), brother of composers Jurriaan Andriessen (1925-1996) and Caecilia Andriessen (1931-), and nephew of Willem Andriessen (1887-1964). Andriessen originally studied with his father and Kees van Baaren at Royal Conservatory of The Hague, before embarking upon two years of study with Italian composer Luciano Berio in Milan and Berlin. Andriessen is married to the former Jeanette Yanikian, a guitarist. They have been a couple for over 40 years, b