Chorus of the Royal Opera House, Covent Garden, Philharmonia Orchestra, Richard Wagner, Barbara Bonney, Matti Salminen, Cheryl Studer, Agnes Baltsa, Andreas Schmidt, Oskar Hillebrandt, Giuseppe Sinopoli, William Pell, Clemens Bieber, Plácido Domingo, Margaret Stobart, Norbert Balatsch, Ingrid Baier, Karen Shelby, Kurt Rydl, Jeanette Wilson