Tune Keeper is a device that is designed to keep your guitar in tune longer. A common challenge posed by the sharp angle of the string break from the nut of the guitar to the tuning machines, especially with the D and G strings, is that the strings can “catch” on the nut, especially when soloing, even when tuning.

Tune Keeper mitigates this challenge by providing slick, curved surfaces against which the strings set and move against.

With the Tune Keeper, as the strings move from soloing, and even while tuning, the strings now glide against the gentle curves of the device, instead of needing to contend with the sharp angle from the nut to the tuning machines.