Willem Ravelli

Carl Dolmetsch

Bruce Boyce

Lotte Wolf-Matthäus

Dietrich Fischer-Dieskau

Columbia Symphony Orchestra

Leopold Mittman

Albert Coates

The Celebrity Quartette

Franz Holetschek

Feike Asma

Welch Chorale

Hugues Cuénod

Phil Spitalny

Mormon Tabernacle Choir

Philharmonia Orchestra

Pierre Monteux

James B. Welch

The Roger Wagner Chorale

Das Orchester Der Staatsoper Berlin

NBC Symphony Orchestra

Victor Chamber Orchestra

Pope Pius XII

Ena Mitchell

The Jordanaires