Born in Italy, Valerio Contaldo grew up in the canton of Valais. After training as a guitarist at the Conservatoire de Sion and the École Normale Alfred Cortot in Paris, he studied singing with Gary Magby at the Conservatoire de Lausanne (Lausanne Conservatory). He also attended masterclasses with Christa Ludwig, Alain Garichot, Klesie Kelly and David Jones.
An ideal interpreter of the baroque repertoire, he has worked under the direction of prestigious conductors, including Corboz, Zacharias, Koopman, Garrido, Christie, Pierlot, Järvi and Tétu. In recent seasons he has sung the title role of Orfeo under Fischer in Budapest, Vicenza, at the Grand Théatre in Geneva, and in concert with Alarcon in Amsterdam, Versailles and Antwerp. He also performed Lurcanio (Ariodante) on tour with the Musiciens du Louvre, La Pellegrina at the Innsbruck Festival, Ferrau and Astolfo (Il Palazzo Incantato) at the Opéra de Dijon, the Opéra Royal de Versailles (the Royal Opera of Versailles) and the Opéra de Nancy, and Combattimento, La Théorie du Cygne Noir at the Aix-en-Provence Festival. This season he will sing Morphée (Atys) at the Grand Théâtre de Genève.
His extensive concert repertoire includes Mozart's Requiem, Große Messe and Litaniae KV195 and KV243, Haydn's Die Schöpfung and Die Jahreszeiten, Honegger's Roi David, Rossini's Petite messe solennelle, J.S. Bach's Johannes Passion, Matthäus Passion, Weihnachtsoratorium and H-moll Messe.
He has made several live radio recordings (Espace 2, Hessischer Rundfunk 2, Radio Canada) and recordings for the Sony Classical-Vivarte, K617, Mirare and Claves labels.