Seymour Barab

Henry Hokans

The Ambrosian Singers

Edwin Loehrer

John McCarthy

Ernst Haefliger

Regensburger Domspatzen

Prague Madrigal Singers

The Peloquin Chorale

Alec Wyton

Jaroslav Vodrážka

Miroslav Venhoda

Charles Bressler

C. Alexander Peloquin

Prof. Jakob Stämpfli

Die Wiener Sängerknaben

The King's College Choir Of Cambridge

Charlotte Lehmann

Societa Cameristica Di Lugano

Deller Consort

David Willcocks

Denis Stevens

Helmut Krebs

Choir Of The Cathedral Of St. John The Divine

Tom Krause