Calculations based on simplified 1D acoustic models (Benade et al.). Assumes cylindrical bore.
Distances are calculated from the physical open end of the flute tube.
Speed of sound is adjusted for temperature. Ensure accurate temperature input.
The embouchure correction uses Kosel's empirical fit. Cork placement relative to the embouchure center
is typically 1-1.5x the embouchure diameter *towards the closed end*.
Model accuracy decreases at higher frequencies (approaching hole cutoff frequencies).