Olivier Messiaen was a French composer, organist, and teacher. He studied at the Paris Conservatoire from 1919 to 1930, and later taught there from 1941 to 1978. Messiaen's musical style is characterized by his innovative incorporation of Gregorian Chant, onomatopoeic elements, bird songs, and a unique modal technique featuring intricate rhythms from ancient and Oriental cultures. During World War II, Messiaen mentored a group of enthusiastic students who later became notable composers. Messiaen held the position of 'organiste titulaire' at La Trinité in Paris from 1931 until his passing in April 1992.
O. Mesiano's music is characterized by a special color of sound, he was close to the ideas of the synthesis of art and music. The composer's musical language is based on the original rhythm and rhythm system, complemented by birdsong transcribed into notes. The composer summarized his creative system in theoretical works, the most important of which are Technique de mon langage musical (My Musical Language Technique, 1944) and Traité de rhytme, de couleur et d'ornithologie (Treatise on Rhythm, Colors and Ornithology, 1994-99 ). Creative ideas were taken from the works of C. Debiusi, I. Stravinsky and other composers, Gregorian chant, Greek poetry, Indian, Polynesian, Eastern peoples' music, birdsong. O. Mesiano's modal technique is based on the five "harmonies of limited transposition" he created ( modes à transpositions limitées), in which the chromatic vocal line is divided into repeated equal parts, e.g. tone-semitone, semitone-tone, etc. The composer paid great attention to rhythm; metrorhythmic dramaturgy was the basis of the creation of the work for him. O.Mesian's music is free meter, based on a system of "irreversible rhythms" (rythmes non rétrogradables).
