Sheet music by Alfred Desenclos

Alfred Desenclos was a French composer of (modern) classical music. Desenclos was a self-described "romantic" whose music is highly expressive and atmospheric and rooted in rigorous compositional technique. Desenclos’s Messe de requiem was written in 1963 and published by Durand et Fils in 1967. In 1999, the piece was reprinted under the name of Atlanta-based composer Tristan Foison. Foison’s mass was given its "American premiere" on 18 May 1999 in a performance by the Capitol Hill Chorale; soon after, the piece was discovered to be a note-for-note duplicate of Desenclos’s.