Cheryl Studer's repertoire is among the widest-ranging of those of any soprano, ranging from the Baroque to the twentieth century; her roles include Violetta (La Traviata), Die Kaiserin in Die Frau ohne Schatten, Odabella in Verdi's Attila, the Countess in The Marriage of Figaro, Floyd's Susannah, and nearly all of the lyric Wagner roles: Elizabeth (Tannhäuser), Elsa (Lohengrin), Freia (Das Rheingold), and Sieglinde (Die Walküre). She has also explored the art song repertory extensively; in all these things, she has applied a strong sense of musicianship and period style. B...