Heckel B4-C#5

B4-C#5. Christlieb, Don. Pictoral Fingerings for Bassoon. Published by author, 1966, p. 29.

Alternate trills in left and right hands:

               Bb-tr
tr tr o | tr tr o(F)
  c

B4-C#5. Timm, Everett LeRoy. The Woodwinds; Performance and Instructional Techniques. Boston: Allyn and Bacon, 1964, p. 177.

tr tr o | tr tr o F
  c

"Alternate trill fingers by hands. Left is down while right is up":

               Bb-tr
tr tr o | tr tr o F
  c

"Alternate trill fingers by hands. Left is down while right is up":

x tr o | x x tr F
 c