How to Tune Pianos

The Hobby, Skill, and Career of Piano Tuning

By Mark Cerisano

Unison Exercise 2

Tuning a Clean Unison

Click [Play Bichord]
Try to hear the beating 5th partial.
If you're having trouble, click [Hear the 5th Partial] to focus your ear.
[Raise] or [Lower] the 2nd string and try to get the 5th partial beatless.
When you think the 5th partial is no longer beating, click [Score].