Composer and print maker.
John Cage was one of the leading composers of the 20th century. Known for his aleatoric / chance music, he began playing around with the boundaries of musical performance and composition.
These are some of his graphic scores. I saw them after I had create my own but I thought they were on the same lines and still found them useful in terms of concept.
I found a couple of his prints and they reminded me of music notation, but also aleatoric music. The way they are suspended in mid air, hanging from nowhere. I definitely see an element of chance in that.
(Images from www.pinterest.com)