Afrika Bambaataa, who pioneered hip-hop, went gold with the song “Planet Rock” in 1982, sampling the hook from Kraftwerk’s “Trans-Europe Express.” “This theft of melodic line sparked a debate in the early ’80s about what was stolen, what was inspiration, and what we’re allowed to copy from others,” the graphic designer says. As soon as he found this source of inspiration, the design of the pattern became obvious. Planet Rock was formed by the shape of sound waves taken from the “samples” that Afrika Bambaataa stole, borrowed, or perhaps merely developed.