Bb4. Biggers, Cornelia Anderson. The Contra-Bassoon: A Guide to Performance (Bryn Mawr, Penn.: Elkan-Vogel, inc. 1977), p. 48.
x x x | x x x F c c#
Bb4. Ewell, Terry B. (05 October 1996). Source unknown.
o x x | x x o F x x x | x x o F
Bb4. Froese, Esther. The Double Reed 1/3 (December 1978): 33.
x x eb o | o o o c c#
For slur from written C4 to Bb4:
x x x | x x o Ab c c# Bb
Bb4. Glassburner, Robert R. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 81.
x x o | x x o F c
Bb4. Seltmann, Werner and Angerhöfer, Günter. Fagott-Schule in sechs Bänder, vol. 6 (Mainz: Schott), p.136-137. Permission granted for inclusion in this WWW index by Deutcher Verlag für Musik.
x x eb o | o o o
d c#
x x eb o | x x o
d c# Bb
Bb
x x eb o | x x o
d c#
x x eb o | o o o
d
x x o | x x o(Ab)
d Bb
Bb
x x o | x x o
d
o x o | x x o
d