Les Corps Glorieux by Olivier Messiaen is a composition that depicts his Roman Catholic faith. Written for Organ in 1939 it is a mix between Indian music and Gregorian Plainsong. This third volume includes the final three pieces of the whole composition: 5. Force et agilité des Corps Glorieux 6. Joie et clarté des Corps Glorieux and 7. Le Mystère de la Sainte-Trinité. This piece is divided into 7 sections: 1. Subtilité des Corps Glorieux 2. Les eaux de la Grâce 3. L'ange aux parfums 4. Combat de Mort et de la Vie 5. Force et agilité desCorps Glorieux 6. Joie et clarté des Corps Glorieux 7. Le Mystère de la Sainte-Trinité Olivier Messiaen (1908-1992) was a French organist and composer who was also passionate about Ornithology and one of the most important composers of his century. Inspired by Japanese music he had a very special way of composing and his work can be identified by its complexity its diatonic aspect its harmony with limited transposition its colour and its additive rhythms. He composed many works related to ornithology and birdsong including the 'Bird Catalogue' in 7 volumes and the 'Treatise on rhythm colour and ornithology' in 7 volumes.