Bb3. Davies, Mark. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 55. Ramey, Richard. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 60. Spittel, Richard. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 57.

    Db
x x x | x x
       Bb

Bb3. Ewell, Terry B. (20 August 1994). For pianissimo:

    Db
x x x | x x o
       Bb
Bb

To stabilize the pitch:

    Db
x x x | x x o
       Bb

Bb3. Karr, Matt. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 67.

    Db
x x x | x x o 
  a c# Bb

Bb3. Hardisty, Donald M. "Tuning those Bassoons: Part II--Tuning Individual Notes and Registers." The Instrumentalist 36/8 (March 1982): 72. Cooper p. 147.

x x x | x x o
       Bb

Bb3. Peeples, Georgia. "Playing Pianissimo: Mute Fingerings for the Bassoon." NACWPI Journal 62/2 (Winter 1993-1994): 15.

    Db
x x x | x x o
       Bb
B C D

Bb3. Swanson, Robert. "Pictorial Bassoon Fingerings." Woodwind Magazine 3/10 (June 1951): 5.

x x x | x o x Ab
 c

Heckel-system bassoon fingerings by note name