The author wishes to thank Johnny Reinhard, who has contributed substantially to the Bassoon-Family Fingering Companion with his microtonal fingerings for Heckel-System Bassoon. His fingerings may be found in the seven-note octave division, the quarter-tone and quinquepartite-tone sections.
The "+" sign indicates 1/4 of a whole step sharper. Thus, C+3 is 1/4 of a whole tone above C3; C#+3 is 3/4 of a whole step above C3. For the 12-note division of the octave (normal fingerings) please see Heckel-system bassoon standard fingerings. Select the desired note name (or enharmonic equivalent):
C+2 C#+2 D+2 Eb+2 E+2 F+2 F#+2 G+2 G#+2 A+2 Bb+2 B+2
C+3 C#+3 D+3 Eb+3 E+3 F+3 F#+3 G+3 G#+3 A+3 Bb+3 B+3
C+4 C#+4 D+4 Eb+4 E+4 F+4 F#+4 G+4 G#+4 A+4 Bb+4 B+4
C+5 C#+5 D+5 Eb+5
The "^" sign indicates 1/5 of a whole step sharper. Thus, C^3 is 1/5 of a whole tone above C3. In this 31-tone scale B2 is 1/5 whole step lower than Cb3; C#3 is 1/5 whole tone lower than Db3, and D#3 is 1/5 step lower than Eb3. In other words in this scale, there are no enharmonic equivalencies between sharped and flatted adjacent pitches.