Tristan Keuris
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Tristan Keuris (born Amersfoort, 3 October 1946 - died Amsterdam 15 December 1996) was a Dutch composer.
Taught by Ton De Leeuw, and influenced by Igor Stravinsky, he was a teacher at the conservatories in Hilversum and Utrecht
Keuris received international recognition with the symphonic work Sinfonia (1975).