Mathematically pattern-free music

gary.flake writes: Scott Rickard set out to do what no musician has ever tried — to make the world’s ugliest piece of music. At TEDxMIA, he discusses the math and science behind creating a piece of music devoid of any pattern. He used mathematics of Évariste Galois (who was born 200 years ago) to create pattern-free sonar pings which he mapped to notes on a piano, and then played them using the non-rhythm of a Golomb Ruler. Now, why didn't I think of that...