Le Banquet Celeste, by Olivier Messiaen is one of his earliest compositions. Written for Organ, this piece lasts 7 minutes because of its slow tempo that gives it a timeless feeling. This piece is quite challenging and would require an advanced technical level. Written in Octatonic mode, Le Banquet Celeste used a theme that was transposed twice for less monotony Olivier Messiaen (1908-1992) was a French organist and composer passionate about Ornithology and one of the most important composer 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.