This meant that anyone could join, graphic scores were used (rather than traditional sheet music), and there was an emphasis on improvisation.
Even though Roberts composes, she uses graphic scores, or variable blocks of instruction, sometimes of a chance nature.
Sound Patterns 4 (1969), for miscellaneous instrumental groups (graphic score)
Until 1990, Musicworks emphasized post-Cage-an music practices, performance art and graphic scores.
Althoff has made graphic scores for other musicians to play his instruments, which often sound different each time they are 'played'.
In the last half century, graphic scores - music notated as art - have become commonplace.
All CBS needs now is a graphic unifying score and clock.
It comprises a series of graphic scores Frith composed in 1992 "for any number of players".
Some employ standard notation, whereas others are graphic scores, text scores, etc.
These graphic scores are intriguing and complex works of art in their own right.