- Alix Dumon-Debaecker · Ensemble la Sportelle
- Dr. Karl Chang · Crystal Children’s Choir · Jenny Chiang
- Pennsylvania All-State Orchestra
- Northwestern University University Chorale · Dr. Scott Hochstetler · Goshen College Men’s Chorus · Robert A. Harris
- Heidi van Regenmorter · Scott VanOrnum · ACDA Western Division Men's Honor Choir · Kathryn Smith · Paul Rardin · Malcolm Dalglish · ACDA Western Division Women's Honor Choir · Sacramento Master Singers · Clifford Shockney · Ralph E. Hughes · ACDA Junior High Girls Honor Choir
- Pennsylvania State University Oriana Singers · Central Bucks H.S. West Chamber Choir · Lynn Drafall · Grace Kingsbury Muzzo · Dr. Joseph Ohrt · The York College Chamber Singers