Stratosphere (Altissimo Etudes for Saxophone) by Noah Getz. For Any Saxophone. Collection. Published by Advance Music (AV.7152).
This book is intended to prepare the advanced saxophonist for the demands of modern repertoire. Etudes in a variety of musical styles, practice concepts, exercises, and a brief history are included to aid in the development of the altissimo register. In addition, this book demonstrates greater potential for the altissimo range for performers and composers.