E2. Chick, Richard. BBP2, p. 60. Cooper, L. Hugh. The Double Reed 2/3 (December 1979): 16. Peeples, Georgia. "Playing Pianissimo: Mute Fingerings for the Bassoon." NACWPI Journal 62/2 (Winter 1993-1994): 14. For pianissimo same as Cooper p. 18.

    (Db)
x x x | x x x F
         E
Bb

E2. Cooper, L. Hugh. The Double Reed 2/3 (December 1979): 16. Pence, Homer. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 77. Schoenbach, Sol. In Klimko, Ronald. Bassoon Performance Practices and Teaching in the United States and Canada. Idaho: University of Idaho, 1974, p. 68. Tilson, Lawrence. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 56. Cooper p. 16.

     Db
x x x | x x x F
  (w)    E

Heckel-system bassoon fingerings by note name