Piano Pitch Diagnostic by Burd and Sons Piano Service
A simple tool to help you choose the right tuning service for your instrument.
Discover whether your piano needs a Standard Tuning or a Pitch Adjustment.
Instructions:
Allow the Pitch Checker to use your microphone. A mobile phone works best.
Click “Start Listening.”
Play Middle C (C4) and hold the key for 2–3 seconds.
Release the key, then play Middle C again if needed to confirm the reading.
Read the result displayed by the Pitch Checker.

Important Note:
If you get sporadic readings, it’s likely because the 3 strings that make up Middle C are so out of tune with each other that a good reading is not possible.
If this happens, it’s a clear sign that your piano is very out of tune and needs a pitch adjustment.
You might enjoy reading This Blog Article which explains how to tell whether your piano is in tune or not.

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