F2. Cooper, L. Hugh. The Double Reed 2/3 (December 1979): 16. For pianissimo same as Cooper p. 23.
Eb x x x | x x x F w D
F2. Cooper, L. High. The Double Reed 2/3 (December 1979): 16.
Db x x x | x x x F w
F2. McAuliffe, Joseph. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 64.
x x x | x x x F w D
F2. Peeples, Georgia. "Playing Pianissimo: Mute Fingerings for the Bassoon."NACWPI Journal 62/2 (Winter 1993-1994): 14.
Db x x x | x x x F
Heckel-system bassoon fingerings by note name