F4. Arbiter, Eric. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 71. If F4 is flat, add R. H. Ab key to Cooper p. 215.
Eb x o x | x x o Ab
F4. Cooper, L. Hugh. "Bassoon Clinic Series, Part Four," Etude: the Music Magazine 47/6 (June 1949): 356.
(Eb) x o x | x x o
F4. Dawson, William. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 56.
Db x o x | x x o
F4. Groeling, Charles R. "Cultivating Bassoonists." The Instrumentalist 47/1 (August 1992): 50. Hardisty, Donald M. "Tuning those Bassoons: Part II--Tuning Individual Notes and Registers." The Instrumentalist 36/8 (March 1982): 72. Moritz, Frederick. "A Dissertation on the Use of Alternate Fingerings for Some of the High Register Notes on the Heckel and Heckel-Type Bassoons." The Double Reed 8/3 (Winter 1985): 34, 36. Polonchak, Richard M. "What Directors Should Know about Bassoonists in the Band." The Instrumentalist 30/9 (April 1976): 26. Cooper p. 215.
Eb x o x | x x o
F4. Corey, Gerald E. "How to Improve Your Tuning on the Bassoon." The Journal of the International Double Reed Society 8 (1980): 33. Meek, Richard. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 61.
Corey--"A fingering for this f which I use for very loud passages will not crack":
Meek--"Slur fingering for 12,000 series Heckel":
Eb o x o | x x x Ab
F4. Spittel, Richard. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 57. Same as Cooper p. 215 except add L. H. little finger Db key.
Eb Db x o x | x x o
F4. Swanson, Robert. "Pictorial Bassoon Fingerings." Woodwind Magazine 4/1 (September 1951): 9.
Eb Db x o x | x x o
F4. Wadine, Edward. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 70..
x o o | x x o or: x o x | o x o
F4. Wadine, Edward. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 65.
Same for both French and German bassoons:
o x o | x x o Ab