Graphic notation (music)
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Graphic notation is the representation of music through the use of visual symbols outside the realm of traditional music notation. Graphic notation became popular in the 1950s, and can be used either
Belle, bonne, sage, by Baude Cordier, fl. 15th century.
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
Graphic notation (music)
…Composers often rely on graphic notation in experimental music, where standard musical notation can be ineffective. Other uses include pieces where an aleatoric or undetermined effect is desired. One of the earliest pioneers of this technique was Earle Brown, who, along with John Cage, sought to liberate…
Karlheinz Stockhausen lecturing on Klavierstück XI at Darmstadt, July 1957