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