35 Exercises for Flute, Op. 33 - Book III. (Book III: Eight Difficult Exercises). By Ernesto Koehler (1849-1907). For flute. Classical Period. Difficulty: medium-difficult. Instrumental solo book. Standard notation. Opus 33, Book III. 20 pages. Published by Carl Fischer (CF.O2499).
ISBN 0825824273. With standard notation. Classical Period. 9x12 inches.
Known to be one of the finest flutists of his day, Koehler wrote over 100 pieces for flute, with the majority of his work being etudes.