After four years of private vocal training with Peter Sefcik, he studied at the Hamburg University of Music and Theatre with Kammersängerin Renate Behle.
While still a student, he was offered his first permanent engagement by the Theater Bremen, which enabled him to build up a wide-ranging repertoire at an early stage and was soon followed by an ensemble contract at the Cologne Opera.
[2] His musical range includes roles like Belmonte (The Abduction from the Seraglio), Tamino (The Magic Flute), Don Ottavio (Don Giovanni), Fenton (Falstaff), Camille de Rosillon (The Merry Widow), Lysander (Britten: A Midsummer Night's Dream), Don Ramiro (La Cenerentola), Boris Grigorievič (Janáček: Káťa Kabanová), Max (Der Freischütz), Erik (The Flying Dutchman), Loge (Das Rheingold), Lohengrin (Lohengrin), Matteo (Arabella), Leukippos (Daphne) and the Italian tenor in Capriccio and Der Rosenkavalier.
At the core of his extensive concert repertoire are the great sacred works of Bach, Handel, Haydn, Mozart, Schubert and Mendelssohn.
[6] Bruns is a prize winner of the Bundeswettbewerbs Gesang Berlin, the Hamburg Mozart-Wettbewerbs and the international Gesangswettbewerbs der Kammeroper Schloss Rheinsberg.