- Jeffrey Smith, Matthew Edwards, Benjamin Bachmann, The Grace Cathedral Choir of Men and Boys
- Anthony Korf, Albert Wilson, Raymond Kohere, Norma Barsness, Sandra Stone, Robert Harley, Dale Zurbrick, Lawrence Benz, Placida Robinson, The Riverside Choir, Jeanne Audrey Powers, Jane Weidensaul, William Rhodin, Dennis Elliott, Jerry Brainard, George W. Thomas, Louise Natale, Eugene E. Laubach, Ann Mackay, Judith Bachleitner, Dale Bishop, Frederick Swann, Francis F. Fisher, John Howell Morrison, Kathryn Cowdrick, Robert Macdonald, John Walker
- Washington Symphonic Brass, members, Michael McCarthy, Christian Sidak, Washington National Cathedral Choir of Men and Boys, Washington National Cathedral Choir of Men and Girls, Erik Suter, Scott Hanoian
- Beverly Hills All Saints' Church Choir, Craig Phillips, Thomas Foster, William Wood
