Tools for Organ Builders

Calculation tools for organ building and voicing work.

Pipe Scale Calculator

Analyse organ pipe scales against the Töpfer normscale. Computes normscale deviations for six octave positions, Nolte equivalent diameters for wooden pipes, and voicing data including flue areas, wind velocity, volume flow, and the Ising intonation number.

Open tool →

Reference Pitch Calculator

Correct a measured pitch reading for temperature differences between the reference condition and the moment of measurement. Enter the reference pitch and temperature, the measured pitch and temperature, and the calculator returns the deviation in cents and the pitch adjusted back to the reference temperature. Supports °C and °F.

Open tool →