Lewis made a number of recordings, including Messiah (Handel), L'incoronazione di Poppea (Monteverdi), Idomeneo (Mozart), Liebeslieder Walzer and Neue Liebeslieder Walzer (Brahms), Coleridge-Taylor's The Song of Hiawatha, Elgar's The Dream of Gerontius, Benjamin Britten's Spring Symphony (with Leonard Bernstein), scenes from William Walton's Troilus and Cressida, BBC Studio recording of The Mercy of Titus (La Clemenza di Tito) In English with Joan Sutherland, and four different performances of Mahler's Das Lied von der Erde, two with Maureen Forrester, (Reiner/Walter) one with Kathleen Ferrier (Barbirolli), and a fourth with Lili Chookasian (Ormandy). There is also a live recording with George Szell and the Cleveland Orchestra.
