Born in Fribourg on 4 June 1945, Ducret was gifted a tenor voice and performed as a soloist in works composed by Pierre Kaelin [fr], Raoul Follereau [fr], and Émile Gardaz.[2] He then founded the Chœur des XVI, which he directed from 1970 to 2018.[3] In 1980, he participated in the Étoile d'or competition, organized by Télévision Suisse Romande, in which he won first prize with the work Noël à danser, performed by the Chœur de Sainte-Thérèse.[4] In 2004, he participated in an international competition in Barcelona and was a finalist, which preceded his victory in the Association faîtière européenne.[5]
As a teacher at the Collège Saint-Michel, he developed methods for reading music.[6] On 4 June 2007, an exhibition of his works was opened at the Cantonal and University Library of Fribourg, which displayed nearly 500 works.[7] A book titled André Ducret, compositeur, chef de chœur et pédagogue was published for the occasion.[8] In 2013, the association Plans Fixe released a report dedicated to him.[9] In 2022, a biographical work on him was written by Philippe Rolle.[10]
Ducret died on 1 February 2025, at the age of 79.[11]