The English tenor, Gilles Bersier, discovered the singing with Les Petits Chanteurs de Fribourg directed by the abbot Pierre Kaelin. He obtained his degree in music at the University of Tucson, Arizona.
On the stage, Gilles Bersier performed the Count in Il Barbiere di Siviglia by Rossini and Alfredo in La Traviata by Verdi with Wesport Art Center, the title role in the Clémence de Titus with West Side Opera of New York, Ferrando in Cosi fan tuttè by Mozart and Rodolfo in La Bohème with the Opera Forum of New York, as Tamino in the Magic Flute by Mozart with New Opera Festival di Rome, Italy. In La Chemise by Jean-François Monod, Gilles regaled himself by interpreting four of the principal roles of this republican operetta..
In concert, Gilles Bersier sang Te Deum by Georges Bizet and Les Sept Paroles du Christ en Croix by Frank with the Choeur Symphonique de Fribourg with which he also sang the Requiem and the Crowning Mass by Mozart, Stabat Mater by Dvoràk, The Creation by Haydn, as well as Missa Alba and Dolorby by Pierre Huwiler. The Mass in B minor (BWV 232) by J.S. Bach and Missa di Gloria by Puccini are two works which he recently performed, as well as the Requiem of Camille Saint-Saëns, the Mass in G by Schubert, the Magnificat of Antonio Vivaldi and Cantatas BWV 17, BWV 36 and BWV 106 by J S. Bach.