US bass-baritone
Richard Wagner, Christoph von Dohnányi, The Cleveland Orchestra, Poul Elming, Alessandra Marc, Anja Silja, Alfred Muff, Gabriele Schnaut, Robert Hale
Robert Schumann, Julia Faulkner, Heidi Grant Murphy, Florence Quivar, Elisabeth Wilke, Keith Lewis, Robert Swensen, Robert Hale, Chor der Staatsoper Dresden, Staatskapelle Dresden, Giuseppe Sinopoli
Richard Wagner, Hildegard Behrens, Robert Hale, Josef Protschka, Kurt Rydl, Uwe Heilmann, Chor der Wiener Staatsoper, Wiener Philharmoniker, Christoph von Dohnányi
George Frideric Handel, Margaret Marshall, Catherine Robbin, Anthony Rolfe Johnson, Robert Hale, Charles Brett, Saul Quirke, Monteverdi Choir, English Baroque Soloists, Sir John Eliot Gardiner
