Reed Organ Tuning Calculator

Many Reed organs were not tuned to A=440 as their pitch standard, and adjusting a lot of old reeds to fit that standard is a time consuming process that may end up damaging a reed that cannot be replaced. This Excel table helps you calculate what frequencies the other reeds in a reed organ should be based on your measurement of the pitch standard A. To use it, use a recording or tuning meter to find what the pitch of your central "A" is at. Then, enter that value into the A=440 cell in the excel spreadsheet. The spreadsheet will automatically calculate the frequency of all other reeds and the frequency of any celeste reeds as well based on that pitch.