Olivier Messiaen (1908-1992) is known for his unique composition style. Incorporating complex rhythms harmony melodies and his passion for ornithology his Vocalise-Étude for high Voice and Piano is no exception to the composer's popular distinctive style. Olivier Messiaen (1908-1992) was admitted to the Paris Conservatoire at the mere age of 11 where he won many prizes. As a passionate ornithologist as well as organist and composer many of Messiaen's works also depict bird song. Vocalise-Étude composed in 1935 does not have lyrics but addresses breathcontrol intervals phrasing range complex rhythms and chromaticism. Vocalise-Étude is essential to all advanced vocalists seeking to progress and improve their technique.