The Music Man is such an iconic show that it's easy to overlook Barbara Cook's participation in the original production, particularly given Shirley Jones' excellent performance in the hit film. However, Cook's Marian the librarian must not be overlooked. Forget every girl in every high school and community theatre who's taken on the role — and while you're at it, forget Shirley Jones. The depth and beauty of Cook's singing is here is truly singular. These deceptively simple songs shimmer in the rich nuances of her delivery. You think you know The Music Man, but until you re-investigate Barbara Cook's cast album Marian, you have no idea.