The music for "Law & Order" was composed by veteran composer Mike Post, and was deliberately designed to be minimal to match the abbreviated style of the series. Post wrote the theme song using electric piano, guitar, and clarinet. In addition, scene changes were accompanied by a tone generated by Post. He refers to the tone as "The Clang", while "Entertainment Weekly" critic Ken Tucker has referred to the sound as the "ominous "chung CHUNG"", actor Dann Florek (in a promo) as the "doink doink", and Richard Belzer as "the Dick Wolf Cash Register Sound".