Ab3-Bb3. Christlieb, Don. Pictoral Fingerings for Bassoon. Published by author, 1966, p. 23.
Eb F#-tr x x x | x x tr F-tr c Bb
Ab3-Bb3. Elliot, Thomas C. In Klimko, Ronald. Bassoon Performance Practices and Teaching in the United States and Canada. Idaho: University of Idaho, 1974, p 65. Cooper p. 128.
x x x | x tr x Ab
Ab3-Bb3. Shanker, Anthony. The Double Reed 1/2 (October 1978): 12.
F# / x x | tr x x F w Ab
Ab3-Bb3. Shanker, Anthony. The Double Reed 1/2 (October 1978): 12. Same as Cooper p. 135 except close L. H. E hole all the way and flick a speaker key for the attack.
Ab3-Bb3. Timm, Everett LeRoy. The Woodwinds; Performance and Instructional Techniques. Boston: Allyn and Bacon, 1964, p. 173.
x x x | tr x x Ab x x x | x tr x Ab Bb x x x | x x tr Bb Eb F#-tr x x x | x x tr F-tr B C
Heckel-System (German) Bassoon Trills and Shakes by Note Names