modern flute C foot

F6

Impedance

Fingering a key depressed a key not depressed a part of the mechanism that is not normally touched Details in fingering legend. Acoustic schematic a closed tone hole an open tone hole Non-specialist introduction to acoustic impedance Non-specialist introduction to flute acoustics

This fingering is comparable to that for F4 except for the use of the LH middle finger key as a register hole. This creates a pressure node (or flow antinode) about three quarters of the way along the pipe, and thus allows F6 but not F4, F5, or C6. Comparing this with the F4 impedance spectrum, we see that the fourth minimum is little changed. The third is shallower and unplayable. The first minimum plays ~A#4 and the second ~A5 but, because it is a cross fingering for these notes, their timbres are darker. Combinations of these three notes may be played simultaneously as multiphonics.