The American bass, Barr Peterson, had worked initially in commercial occupations, before studied singing with Ruth Streeter in Boston, then with Franz Karl in Munich.
In 1955 Barr Peterson made his stage debut at the Stadttheater of Münster (Westphalia) as Osmin in the Entführung aus dem Serail by Mozart. He appeared on various German stages, and along his over twenty years long career he could often be heard at the Staatstheater of Hannover, and as a guest at the Deutschen Oper am Rhein Düsseldorf-Duisburg, and at the Opera Houses of Dortmund, Essen und Wuppertal. On January 29, 1967 he participated in Hannover in the premiere of the opera Die Doppelgängerin by Jan Meyerowitz. Among his roles should be mentioned: Sarastro in Zauberflöte, Rocco in Fidelio, Warlaam and Pimen in Boris Godunov, King Philipp in Verdi's Don Carlos, Pater Guardian in La forza del destino, Ramphis in Aida, Zaccaria in Nabucco, Daland in Fliegenden Holländer, König Heinrich in Lohengrin, Pogner in Meistersingern, Landgraf in Tannhäuser, Marke in Tristan, the entire bass roles in N Der Ring des Nibelungen, Kaspar in Freischütz, Falstaff in Lustigen Weibern von Windsor by Nicolai and Basilio in Rossini's Barbier von Sevilla.
Recordings: MMS-Concert Hall (bass solo in Verdi's Requiem).