When we speak of Anton Karas' score to Carol Reed's 1949 classic of dodgy penicillin and cuckoo clocks, we speak of the zither. Most of us couldn't describe a zither if the lives of the Swiss nation depended on it, but the Harry Lime theme is nonchalance personified. Karas—the chap with the zither—was discovered by Reed playing in a Viennese tavern and had no experience, but proved to be an inspired choice.