The recent mixtape highlights his signature style, which combines thick, East Coast snare and bass hits with blurry, almost-new-age-y samples. But he's been chopping drums for about 10 years, first for fun and then for an increasingly high-profile group of rappers including web sensation Lil B and Soulja Boy. Hip-hop producer Clams Casino- aka 23-year-old physical therapy student Mike Volpe- just released his first beats tape for free online.