Roughly 1/3 of the engineers that I've encountered in my ~17 year career have music degrees (and one guy who went to ballet school and later wrote one of the most well-known O'Reilly books).
Oh man. I've never paid much attention to the Clojure community but Russ Olsen is great! Eloquent Ruby is probably in the top 5 as far as books that had an impact on my career.
