phrase", which "expresses the peace and charity of Christian paradise". The second section of the Diptyque was rearranged for violin and piano for the last movement in Messiaen's Quatuor pour la fin du temps. However, Messiaen decided to use a much slower tempo on Quatuor: he marked it "extrêment lent" and slowed it down to ♪ = 36, much slower than the ♪ = 58 marked on Diptyque. References 1930 compositions Compositions by Olivier Messiaen Compositions for organ