“England's Matthew Herbert is known more for his musical process than his actual output. His work is guided by his "Contract for the Composition of Music" manifesto, a kind of Dogma 95-style treatise on music-making in the information age. Herbert frowns on sampling other music, synthesizer pre-sets, and drum machines, and gives the thumbs-up to human error (his 2000 mix CD is titled *Let's All Mak”