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Monday, April 29, 2019

Pipe Organ Mutations and Arithmetic

Introduction

This post shows how to use arithmetic to predict what pitch 2 2/3', 1 3/5', and 1 1/3' stops will sound relative to the fundamental 8' pitch. (It also works for 5 1/3' and other mutations.) If you hate arithmetic, already understand mutations, or are bored with organs, this is probably tl;dr (too long, don't read).