G+3. Bartolozzi, Bruno. New Sounds for Woodwind. London: Oxford University Press, 1971, p. 31.

o x x | x x x 
 c

G+3. Reinhard, Johnny. "The Microtonal Bassoon." The Double Reed 10/2 (Fall 1987): 42.

e    Eb
 o x x | x x x
     w

G+3. Vigder, Scott. "A Table of Quarter-Tone Fingerings for the Bassoon," The Double Reed 4/2 (October 1981): 44. These fingerings were extracted from Sergio Penazzi'sMetodo per Fagotto (Edizoni Suvini Zerboni-Milano, 1971).

/ x x | x x x
 c

Fingerings for microtones