Claude-Alain Barmaz was born in 1976 in Vétroz, a commune in central Valais. He started playing the cornet at a very young age with his father. At the age of ten, he took private lessons from Géo-Pierre Moren. He won a multitude of titles at the National Competition for Soloists and Quartets (CNSQ) in 1993 and 1994.
In September 1995, he was invited to Auckland, New Zealand, for the prestigious world competition for soloists, The Errol Mason Memorial Trust, where he won a brilliant 2nd place.
In 1996, he recorded his first CD entitled "Kamikaze" in collaboration with Géo-Pierre Moren and the Brass Band 13 Étoiles. In 1998, he wins the 1st prize at the Concours d'Exécution Musicale de Riddes, in Valais.
Claude-Alain joined the Orchestre de la Suisse Romande in January 1999. At the end of the year, he released his second CD recorded with Lionel Monnet (trumpet and organ).
In June 2000, he completed his studies at the Geneva Conservatory of Music, in the class of Gérard Métrailler, obtaining a 1st prize for virtuosity with distinction. In September of the same year, he was awarded an Encouragement Prize at the prestigious Maurice-André Competition in Paris.
Since September 2001, Claude-Alain has been professor of trumpet/cornet at the Conservatoire cantonal de Sion and at the Music School of the Fanfare Municipale de Vernier. From October 2007 to August 2009, Claude-Alain conducted the Fanfare la Concordia de Nendaz (brass band formation).
Claude-Alain has played chamber music with two brass bands: the Gesualdo Quintet and the Quintette du Rhône with whom he has performed regularly in Switzerland and abroad.