4th octave D flute fingering
The 4th octave D flute fingering is a bit tricky, but so are all of the fingerings in the fourth octave. Left hand: Thumb (not on the B-flat key) and finger 3 (ring finger) and G-sharp key Right hand: Fingers 1 and 2, and the low C keys A lot of air is required for this note to speak. Work up to it starting with the third octave A, going by half steps, slowly. A to A-sharp A-sharp to B B to C C to C-sharp C-sharp to D Do you feel lightheaded? If so, you're probably doing it correctly. Keep the embouchure relaxed. The air stream should be fast.
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