1-2 flutes - Digital Download SKU: S9.Q54497 Stimulating Exercises for the Flute. Composed by Ernesto Kohler. This edition: Sheet music. Downloadable. Op. 33. Duration 29 minutes. Musikverlag Zimmermann - Digital #Q54497. Published by Musikverlag Zimmermann - Digital (S9.Q54497). German • English • French.ERNESTO KÖHLER'S most popular educational work Der Fortschritt im Flötenspiel (The Flutist's Progress) displays all the qualities that made Köhler so very much admired by flautists during his own lifetime. His melodic spontaneity and high-quality musical setting can also be found in the reworked and re-engraved 2nd Volume. In it, Köhler demonstrates that continual work on articulation, the ligature of difficult intervals and the grasping of complex musical forms does not mean playing pleasure has to be forfeited.