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The Double String Unison (DSU) Tuning Technique is a way of tuning piano notes that allows the technician to make much smaller and precise changes in pitch.
It forces the technician to improve their ability to quickly set solid unisons, and once they have mastered that, the technique becomes very efficient, allowing technicians to make small, precise, and stable pitch changes to two strings at once.
Below are the lessons that will show you how the technique works and will allow you to practice the technique using recordings of actual piano strings.
Introduction - FREE
Exercise - Test Your Pitch Sensitivity - FREE
Exercise - Train Your Ear to Hear Different Out of Tune DSU - PAID
Exercise - DSU Practice - Level 1 - PAID
Exercise - DSU Practice - Level 4 - PAID
Exercise - DSU Practice - Level 4b - PAID
Lesson - Beat Matching Example - FREE
Lesson - Tuning A4 Using an ETD and DSU - PAID
Exercise - Tune A4 Using an ETD and DSU - PAID
Documents:
DSU Procedure - FREE
Get Access to ALL the PAID Lessons in the D.S.U. Course
for only $447 USD