Douglas Guest

Musica Antiqua Wien

Ferdinand Leitner

Mimi Coertse

Chamber Choir Of The University Of Utah

The Choristers Of Bath Abbey

Complesso Caratteristico Turino

Eydie Gormé

Heino

Bhai Gopal Singh Ragi

Hovie Lister

Living Trio

Choir Of The Cathedral Of St. John The Divine

Les Humphries Singers

Bobby Vinton

The Choir Of Clare College

Barry Hall

Ingamay Hörnberg

Sabine Kirchner

Louis Halsey

Jan Peerce

The Philadelphia Orchestra Chorus

Dr. Martin Luther King, Jr.

Württembergisches Kammerorchester

The Oak Ridge Boys