Type of notation used by some composers of the second half of the 20th century, which gives no precise indication of what notes are to be played, or when, but uses graphic means (sometimes but not always incorporating material akin to musical notation) to suggest what the performer might play. Some graphic scores are accompanied by verbal instructions. The technique was used by Morton Feldman (in Projections) as early as 1951; other composers to have used it include Ligeti, Stockhausen and Cardew. See Notation and Aleatory.
