Xavier Sarasola combines his work as a violin and choir teacher with that of choirmaster, choir singer and composer. He sings in both the "Orfeón Donostiarra" and the vocal group “Kea”, dedicated to 20th century music. He was Choirmaster for the Guipuzcoan Youth Choir and member of the Technical Committee of the Federation of Choirs of Guipuzcoa. His work covers both instrumental and choir music.