In this video, I describe one element of the Go A.P.E. System that makes it ideal for anyone wanting to learn how to tune pianos or improve their aural piano tuning skills.

The Double String Unison (DSU) technique forces you to get good at tuning quickly unisons that are clean and pure.

If you are already fast at tuning clean unisons, the other elements – Non-Speaking Length Tension Analysis, and Beat Speed Windows – will help you get more accurate tunings and improve your tuning speed.

In this next video from a tuning video on the site, I use DSU to tune A4 to the ETD. Very fast, very efficient, very accurate, very precise.