What is a Partial Change?

For Tuners, Partial Changes

Overview of Partial Changes in ETD Tuning Partial changes are an inherent aspect of using any Electronic Tuning Device (ETD) for tuning a piano. These changes occur because different partials are utilized for tuning various sections of the piano: the bass, midrange, and treble. Selection of Partials in ETD Systems Each ETD tuning system employs…

What is a partial?

For Tuners, Partial Changes

What Is a Partial in Piano Tuning? A partial, in the context of piano tuning, refers to one of the individual frequency components that make up the sound produced by a single piano string. When a key is pressed, the string vibrates in several ways at once, not just at its fundamental frequency. These multiple…

Overview of Partial Changes in Computer-Generated Tunings

FAC Tweaks, For Tuners, Partial Changes, YouTube Videos

This post explains the process of correcting partial changes in ‘computer generated’ piano tunings, specifically using the Partial Change Correction (PCC) feature on the Sanderson Accu-Tuner IV. It details the typical partial changes found in FAC tunings and provides step-by-step instructions for using the PCC feature to improve tuning accuracy and adjust the overall pitch…

Partials Changes in Pianos Overview

For Tuners, Partial Changes

Because we can’t use the same partials to tune A0 and C8, there must be at least one partial change in every tuning software system. All tuning software systems contain partial ‘changes’. Whenever the software switches from one partial to another during the course of the tuning, an error at that partial change is very likely. Since every partial change is a potential tuning issue, the fewer partial changes the better. The higher partials are less reliable then the lower partials.