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