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The Daily Insight

Does changing tuning affect intonation?

Author

Isabella Ramos

Updated on May 01, 2026

No. Intonation is defined by the physical positions of the nut, frets and saddle. Since chaging tunings involves only the tension of the strings, you’ll be just fine.

Why does the 12th fret have two dots?

There are two dots on the 12th fret on a guitar because that’s the point where the notes start repeating from the open string. This is handy to know when you start learning scales because you can reuse the same scale shapes below and above the 12th fret.

How do you fix sharp intonation?

If the fretted 12th fret note is sharp, adjusting the screw clockwise will improve intonation. Turning the screw anti-clockwise decreases the length of the guitar string. If the fretted 12th fret note is flat, adjusting the screw clockwise will improve intonation.

How do you adjust the saddle on a guitar?

Turning the screw counterclockwise moves the saddle toward the nut, which corrects a string that frets flat. Keep in mind that adjusting the saddle for a string corrects only that string. You must perform intonation adjustments for each string. So don’t invite us to that 38-string guitar’s intonation adjustment!

How do I adjust the intonation on my guitar?

These are most often adjusted using a small screwdriver. You can preset the basic intonation of your guitar by taking a tape measure and measuring from the inside of the nut to the center of the 12th fret (the fret wire itself; not the fingerboard). Double that measurement to find the scale length of your guitar.

How do you correct a string’s intonation?

You can correct a string’s intonation by moving the saddle away from the nut if the string frets sharp and toward the nut if the string frets flat. Different bridges have different methods for this, but it’s pretty obvious when you look at the bridge assembly carefully.

What is intonation and why is it important?

Make sure you understand what intonation is. On a fretted instrument like a guitar, intonation is the instrument’s ability to produce fretted notes at the correct pitch all the way up the neck. Therefore, intonation hinges on the length of the string from saddle to nut.