'L'Effet Rebond' is not one album but two. Two parallel albums sharing the same title. One by Pierre-Yves Macé, the other by Sylvain Chauveau - two friends and regular collaborators for nearly twenty years. Both works come from the same original material: guitar, piano, harmonium and vocals, initially recorded by Chauveau. The lyrics in French, English, Japanese are very short poems by or quotations from e.e. cummings, Thelonious Monk, John Cage, Basho, tennis player John McEnroe, Carla Demierre, Aram Saroyan, Joseph Guglielmi and painter Philip Guston. From this common material, each of the two composers has built his own edifice, choosing the elements he keeps, the ones he abandons, adding little by little his own instruments, structures and ideas. In the end, two distinct and autonomous opuses are born.