B2-C#3. Seltmann, Werner and Angerhöfer, Günter. Fagott-Schule in sechs Bänder, vol. 6 (Mainz: Schott), p.140. Permission granted for inclusion in this WWW index by Deutcher Verlag für Musik.

B2:                 C#3:
x x x | x o o       x x x | o o o
                       c#

B2-C#3:
x x tr | x o o

Contrabassoon (German system) trills and shakes by note names