Aleatoric music
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Aleatoric music is music in which some element of the composition is left to chance, some primary element of a composed work's realization is left to the determination of its performer, or both. The t
Karlheinz Stockhausen lecturing on Klavierstück XI at Darmstadt, July 1957
Klavierstücke (Stockhausen)
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The Klavierstücke constitute a series of nineteen compositions by German composer Karlheinz Stockhausen.
Aleatoric music
…Meyer-Eppler, the French composer Pierre Boulez was largely responsible for popularizing the term. Other early European examples of aleatory music include Klavierstück XI (1956) by Karlheinz Stockhausen, which features 19 elements to be performed in a sequence to be determined in each case by the performer. A form of…
Programme for the world premiere of Klavierstück IX
The Teatro Regio in Turin, where Klavierstück XIII was premiered
Klavierstück XV was premiered in the Museum Ludwig (Cologne Cathedral in the background)