Bb2-C3. Christlieb, Don. Pictoral Fingerings for Bassoon. Published by author, 1966, p. 21. Timm, Everett LeRoy. The Woodwinds; Performance and Instructional Techniques. Boston: Allyn and Bacon, 1964, p. 172. Cooper p. 52. Trill everything together.
Bb-tr x x x | tr tr o w
Bb2-C3. Timm, Everett LeRoy. The Woodwinds; Performance and Instructional Techniques. Boston: Allyn and Bacon, 1964, p. 172.
x x x | tr x o w
Heckel-System (German) Bassoon Trills and Shakes by Note Names