Karlheinz Stockhausen was a German composer, widely acknowledged by critics as one of the most important but also controversial composers of the 20th and early 21st centuries. Another critic calls him one of the great visionaries of 20th-century music. He is known for his ground-breaking work in electronic music, aleatory in serial composition, and musical spatialization.
He was educated at the Hochschule für Musik Köln and the University of Cologne, later studying with Olivier Messiaen in Paris...
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