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 (included as part of the New Customer Service).
Instructions:
- 1) Give permission for the app to use your microphone (mobile phone works best)
- 2) Click the “Start Listening” button
- 3) Play Middle C and hold the key down for 2 or 3 seconds.
- 4) Repeat step 3 more times
- 5) Read the results on the checker

Piano Pitch Checker
Play Middle C (C4)
-50 Middle C +50
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Click the button below to begin.
Important Note: This is a brand new feature and I am still tweaking it. 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 clear 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 (New Customer Service).
You might enjoy reading This Blog Article which explains how to tell whether your piano is in tune or not.

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| Day | Hours |
|---|---|
| Sunday | 10:00 AM - 10:00 PM |
| Monday | 10:00 AM - 10:00 PM |
| Tuesday | 10:00 AM - 10:00 PM |
| Wednesday | 10:00 AM - 10:00 PM |
| Thursday | 10:00 AM - 10:00 PM |
| Friday | 10:00 AM - 10:00 PM |
| Saturday | 10:00 AM - 10:00 PM |