​​​​Non Speaking Length

[text_block style=”undefined” align=”left”]

How to Get Superior Stability
in Piano Tuning!

[/text_block]

[text_block style=”style_1.png” align=”left”]

Lesson  – Non-Speaking Length (NSL) Tensions and Stable Tunings

[/text_block]



Are you looking for some more theory?

This book has you covered!