- Christopher M. Cock, Dr. Melissa Plamann, Valparaiso University Chorale, Valparaiso University Chamber Orchestra
- St. Ignatius High School Men’s Chorus, Jason Falkofsky
- Charlotte Woolley, Claude-Bénigne Balbastre, Vana Derderian, Gleb Drobkov, Peter Thompson, James Litton, Justin Godoy, Erik Suter, Scott Hanoian, Brent Flinchbaugh, Elizabeth Robinson, Joanna Dabrowska, St. Albans School Madrigal Singers, William Lockhart, William Simms, Blount Stewart, Washington National Cathedral Choir, members, Christine Buras, Morgan Whitmire, Washington National Cathedral Madrigal Singers, Chester Warner, Rosa Lamoreaux
- Michael McCarthy, Roger Isaacs, Lyon Stewart, Christine Buras, Washington National Cathedral Choir, Mac Lambert, Washington Symphonic Brass, Erik Suter, Charlotte Woolley, Scott Hanoian, Gerry Stacy, Lara Iglesias-Cox