For the theme of rock and roll music, I wanted to avoid referencing any specific artist, so I depicted the drum notation for a "back beat," one of the key rhythms that distinguishes rock music. (Inspired by the Wikipedia definition of hard rock).
The background texture is based on the kuba cloth ish design I did for the jazz contest, and the colors are from the Sgt Pepper album (i.e. the shiny psychedelic band outfits of the four Beatles - ok, so I did end up referencing a specific artist).
My favorites were the 45 rpm inserts (there were several designs of those, but those gold ones were the best) and the palm frond guitar picks.