Buzz Feiten Tuning System

Have you ever had a troublesome tuning problem?
You know the one, we’ve all been there!
The open strings are perfectly in tune but when you play a chord it sounds out.

So what do you do if you are out of tune?

  • You adjust your tuning so that the chord sounds in tune and now find that it’s out of tune somewhere else on the fingerboard.
  • So you tweak it here and tweak it there!
  • And so begins the never ending cycle of chasing your tuning!

The Buzz Feiten Tuning System (BFTS) is an innovative idea created to brilliantly overcome these problems.

BFTS has been around for several years but what is it and how does it work?

BFTS borrows from the principles of the 17th century organist/piano tuner Andrea Werckmeister.
Imperfections in tuning will go unnoticed in intervals such as perfect 5ths and octaves, but the ear will notice imperfections in tuning such as 3rds and 6ths. Werckmeister found that by narrowing the intervals slightly produced a much more pleasing and “in tune” sound.


The Buzz Feiten Tuning System solves tuning and intonation problems with 2 simple steps:

1. Shelf Nut

The exclusive BFTS shelf nut moves the strings closer to the first fret according to a patented formula. This eliminates sharp notes at the first three frets.

Top View:

Each shelf nut is precision machined from high quality bone for superb tonal response. The lightning bolt logo (left) is machined into the top of each shelf nut for authenticity.

Side View:

The strings are moved closer to the first fret a precise distance based on the scale length, fret width and string gauge of your guitar. The slight overhang of the BFTS nut (the ‘Shelf’) does this without altering your guitar in any way. So it’s even fine for vintage guitars.

2. Intonation


Your guitar’s bridge is adjusted according to the BFTS Patented pitch offsets, creating balanced intonation over the entire fingerboard, every fret & every string read more…

By undertaking a course in the Buzz Feiten Tuning System I am a qualified Buzz Feiten retrofitter. This is the system that I endorse.

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