Jean Chatillon was born from a family of musicians, in 1937, in Nicolet, Québec.
In 1951, he began to play piano and to compose. At first self-taught, then he made serious musical studies in Montréal.
In 1969, he has founded the Section of Music of the University of Québec at Trois-Rivières and teached there until 1981.
Retired since that year, he dedicated himself to his art. Very prolific, he has written very many works in music and in litterature.
He is an accepted composer at the Canadian Center of Music.