F3-Gb3. Christlieb, Don. Pictoral Fingerings for Bassoon. Published by author, 1966, p. 23. Timm, Everett LeRoy. The Woodwinds; Performance and Instructional Techniques. Boston: Allyn and Bacon, 1964, p. 173.
eb-tr o o o | o o o w o o o | tr tr tr F-tr w
F3-Gb3. Ewell, Terry B. (20 August 1994). For a dark-sounding and ppp trill.
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F3-Gb3. McAuliffe, Joseph. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 63.
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Heckel-System (German) Bassoon Trills and Shakes by Note Names