Graphic notation (or graphic score) 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 in combination with or instead of traditional music notation. Graphic notation was influenced by contemporary visual art trends in its conception, bringing stylistic components from modern art into 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 performers from the constraints of notation and make them active participants in the creation of the music.
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Graphic notation (music) in the context of Henry Cowell
Henry Dixon Cowell (/ˈkaʊəl/; March 11, 1897 – December 10, 1965) was an American composer, writer, pianist, publisher, teacher and the husband of Sidney Robertson Cowell. Earning a reputation as an extremely controversial performer and eccentric composer, Cowell became a leading figure of American avant-garde music for the first half of the 20th century — his writings and music serving as a great influence to similar artists at the time, including Lou Harrison, George Antheil, and John Cage, among others. He is considered one of America's most important and influential composers.
Cowell was mostly self-taught and developed a unique musical language, often blending folk melodies, dissonant counterpoint, unconventional orchestration, and themes of Irish paganism. He was an early proponent and innovator of many modernist compositional techniques and sensibilities, many for the piano, including the string piano, prepared piano, tone clusters, and graphic notation. The Tides of Manaunaun, originally a theatrical prelude, is the best-known and most widely-performed of Cowell's tone cluster pieces for piano.
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