- Dolce Canto
- The State Moscow Chamber Choir & Vladimir Minin
- Illinois Honors Chorus, Brad Holmes, Illinois Combined Honors Organizations, Illinois All-State Chorus, Robert Boyd, Graham Heise & Illinois Combined All-State Organizations
- Shorter University The Shorter Chorale, University of Kentucky Men’s Chorus, Dr. Martha Shaw, Jefferson Johnson, Steven Wooddell & Julian Bryson
- Harry van der Kamp, Gesualdo Consort Amsterdam & Bernard Winsemius
- Bob Jones University Choirs and Ensembles
- Stephen M. Hopkins, Kent Hatteberg, Appalachian State University University Singers, University of Louisville Cardinal Singers & Hollie Lacy