Sarah Vaughan had already mastered the roots of gospel music and the intricacies of bop when her overarching talents led her to be packaged as a pop-singing canary. Fortunately her work with EmArcy allowed for some straight-ahead, unadorned jazz performance, where Vaughan's talent could shine without the frills. On Swingin' Easy, Vaughan is backed by a pair of trios, both featuring the great drummer Roy Haynes, whose supple rhythms give Vaughan's voice the context it deserves. "Shulie a Bop," "Lover Man," "All of Me," "Body and Soul" and "They Can't Take That Away from Me" are masterful performances. --John Swenson