F4-Ab4. Tyree, Ronald. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 76.

    Eb
x o x | x x x
  c#-tr

F4-Ab4. Tyree, Ronald. In Klimko, Ronald. Bassoon Performance Practices and Teaching in the United States and Canada. Idaho: University of Idaho, 1974, p. 71.

    Eb
x o x | x x tr
 a-tr

Heckel-System (German) Bassoon Trills and Shakes by Note Names