Ensemble Polyphonique De L'O.R.T.F.

Charles Bressler

Wiener Akademie Kammerchor

Cliff Richard

Maurice Duruflé

Utrechts Byzantijns Koor

Walter Frye

The Salvation Army

The Golden Gate Quartet

Margherita Di Landi

Dr. Martin Luther King, Jr.

Paul Esswood

Herbert Von Karajan

Thomas Damett

Georges Durand

Ireneu Segarra OSB

Chorus Viennensis

Ernesto Boezi

Dimitre Rouskov

Fritz Lehmann

Coro Della Cappella Giulia

Jan Peerce

Robert Tear

Paramahansa Yogananda

Syntagma Musicum