Click the links below and watch me tune the pianos.
In most of these videos, I use Double String Unison (DSU) and Bisecting Beat Speed Windows (BBSW)

Tuning the Temperament of an Old Piano Using DSU and BBSW, plus a description of why I use DSU on most of these videos.

Steinway D Concert Tuning FREE CONTENT!

Young Chang Tuning, November 1st, 2018