A4. 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# o x x | x x x F c c#
A4. Froese, Esther. The Double Reed 1/3 (December 1978): 33. Also Glassburner, Robert R. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 80.
x x x | x x o c c#
A4. Seltmann, Werner and Angerhöfer, Günter. Fagott-Schule in sechs Bänder, vol. 6 (Mainz: Schott), p.136. Permission granted for inclusion in this WWW index by Deutcher Verlag für Musik.
With the L. H. thumb C# use the alternate D key:
x x(eb)o | o o x d c# x x o | o x x d c# x x(eb)o | o x o d c# x x o | x x o d (c#) x x o | o o o d (c#) x x x | x x o d c# x x(eb)o| o o x d c