Attention! Piano keyboards have a manufacturing defect.
- discovered by Gregory Shir!
U.S. Patent No. 9064478
compare angle of black keys close up

Our patent makes changes to the width of white keys
and the angle of the front of the black keys.

We are working on a retrofit for white keys.

Now On Ebay!
 A retrofit for the black keys of your piano.

RETROFIT KITS FOR BLACK KEYS OF MANY PIANO MODELS
- NEW GREGORY SHIR KEYBOARD

compare standard black keys to Mozart Best black keys
Compare older black key on left
with ours on the right

Our key retrofit kit and a piano are on EBay

Gregory Shir model retrofit for black keys

This is the first time a modified key top has been patented (#9064478).

This key top can be set up for almost any piano.The design of the keys corrects the pianist's hand movements and resting positions to prevent Carpal Tunnel Syndrome while improving posture, thus allowing the pianist to practice easier with less discomfort.

*More responsive to touch
*Easier to reach keys
*Ergonomically correct
*Easier to play rapid passages

Please contribute to our project.
We want to make playing piano easier for everyone, kids and adults.
Help us make a new piano for our generation!

 

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U.S. Patent No. 9064478

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gregoryshir@sbcglobal.net
818 644-7050
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