Over many years of research and development, Earvana has designed the compensated nut to provide the most accurate intonation available on the market today. We have perfected the correct degree of compensation at the nut and the bridge needed to achieve a total balance throughout the entire fret board. This results in string compression whereby extending the break off point at the nut flattens the intervals from the nut to the 12th fret.
By moving the bridge forward, which sharpens the intervals from the bridge to the 12th fret. This is where the comparison to tuning like a piano comes in. Lower notes on a piano are flattened progressively more from middle C to the lower register, and sharpened progressively more from middle C to the higher register. This system of tuning is built into the Earvana nut.