50 Etudes Faciles Et Progressives (50 Easy And Progressive Studies) for Saxophone (or Oboe), is an excellent collection of studies, composed by Guy Lacour. These studies are designed to improve your technical control and stylistic awareness, and are designed so that they progressively become more difficult, introducing you to further, and more advanced, concepts. Volume 1 contains studies 1-25 in the collection. In printed sheet music format.