- Frederica von Stade
- Silvester Vicic, Greg Hippen, VocalEssence Ensemble Singers, Joan Griffith, Philip Brunelle, Bobby Stanton, David Hagedorn, Charles Kemper & Clint Hoover
- Turtle Creek Chorale & Tim Seelig
- New York City Children's Chorus & Mary Huff
- The William Baker Festival Singers
- J.A.C. Redford