You tune up, play through one song, and the guitar already sounds off. A piano can sit untouched for weeks, yet a guitar rarely makes it through a session.
There’s no single villain here. The drift comes from a handful of small things stacking up, and most of them have nothing to do with the quality of your instrument.
This guide breaks down each reason a guitar slips out of tune. Better still, it shows the simple habits that keep it locked in much longer.
Let’s run through the causes one by one.
Why Do Guitars Go Out of Tune?
There are several reasons your guitar drifts out of tune and your guitar chords and notes stop sounding right. These are the most common causes:
- New strings that haven’t been stretched properly. Fresh strings keep stretching as you play, pulling the pitch flat.
- Strings that aren’t properly seated in the bridge saddles. Loose seating lets the string settle unevenly.
- Strings that aren’t wound neatly around the tuning pegs. Extra slack works loose and the pitch slips.
- A nut that pinches the string. When the string binds in the nut slot, it slips suddenly while you tune.
- A tremolo system that isn’t set up correctly. An unbalanced trem pulls the tuning around every time you use the bar.
- Intonation that isn’t set up correctly. Poor intonation makes the guitar sound out of tune even when the open strings are right.
A lot of things also determine how long a guitar stays in tune, such as how often it’s played, the age of the strings, and overall maintenance. The encouraging part is that keeping a guitar in tune is straightforward once you follow a few basic guidelines.
If you want to remove the most common slipping point entirely, it’s worth understanding how locking tuners work.
How Long Should a Guitar Stay in Tune?
There’s no one-size-fits-all answer for how long a guitar should stay in tune. It’s completely normal for new guitar strings to stretch out as the guitar is played, and the act of strumming and picking stretches the strings to varying degrees.
A guitar that’s played a lot will naturally drift out of tune more often than one that rarely gets touched.
A good habit is to “warm up” a guitar by playing it for ten to twenty minutes, then tune it with a good quality guitar tuner like this one on Amazon. You can also take a look at our recommendations for tuner guitar app options, best guitar tuners, clip-on tuners, or tuner pedals.
This warm-up gets the strings on an acoustic or electric guitar ready to hold pitch dependably for the rest of a playing session.
Is It Normal for a New Guitar to Go Out of Tune?
Yes. A new guitar with new strings has strings that aren’t fully stretched out yet, so it tends to go out of tune more often until those strings settle in.
Even a single string out of tune can throw off the whole instrument.
Because new strings haven’t gone through the stretching process, expect to tune a new guitar more frequently than usual right after a string change. Once the strings have stretched out optimally, regular playing has far less effect on whether the guitar stays in tune.
Many players recommend gently stretching new strings before or immediately after installing them. This reduces how often you need to re-tune in those first sessions.
String quality and gauge also affect how long a guitar holds pitch. Good quality strings, like my favorite ones here on Amazon, are far more likely to stay in tune for longer.
Lighter gauge strings can take longer to fully stretch, and if you change a new guitar’s original strings to a different gauge, it may go out of tune more often.
Pay attention to the factory gauge of a new guitar before upgrading the strings. If you really need to change gauge on a new guitar, your best bet is to consult a guitar service professional for help.
It’s also smart to do a basic visual inspection of any new guitar for issues that cause tuning problems. For example, if the strings are locked at the tuning pegs, that limits excessive string movement and helps the guitar stay in tune longer.
Check the bridge and the pickup height too. Make sure the intonation screws aren’t loose and that the pickup height isn’t set too high.
A new guitar usually has no issues with the nut (what are guitar nuts made of?), but it’s still worth confirming the nut isn’t pinching the strings.
Finally, climate plays a role in any guitar staying in tune, including a brand-new one. Temperature swings and guitar humidity both push a guitar out of tune.
When a guitar is played or stored in a cold environment and then moved to a warm one, expect some tuning to be needed, and consider a room humidifier for guitars to keep conditions stable. Abrupt, extreme temperature and humidity changes should be avoided as much as possible.
How Often Does a Guitar Go Out of Tune?
As noted above, there’s no hard and fast rule. Warming up a guitar by playing it for ten or more minutes and then tuning is a reliable way to make a string hold pitch for a full session.
Most guitar experts consider string stretching the single most important factor in whether a guitar stays in tune or drifts too quickly. Many players gently stretch strings before or right after installing them to minimize the stretching that happens once the strings are first played.
When stretching by hand, be gentle so you don’t break or overstretch the string.
It’s a good idea to play the guitar for a few minutes before doing any stretching, and to keep a light touch throughout. When in doubt, consult a professional guitar technician.
If a guitar suddenly starts drifting out of tune frequently, especially if it used to hold pitch dependably, some maintenance is probably overdue. If the strings are simply too old, they won’t stay in tune, and the fix is to change them.
If you’ve already checked the tuning pegs, truss rod, intonation, pickup height, the bridge, and the nut slots and everything looks fine, it may be time to have an experienced guitar tech take a look.
There are also a few extra factors when a guitar never quite sounds in tune. Intonation matters a lot here, because a guitar that isn’t properly intonated won’t sound right even when the open strings are correct.
This shows up most on fretted notes higher up the neck, and fixing it can involve adjusting the truss rod, which is usually a job for a professional.
How Do I Keep My Guitar in Tune?
Properly stretching the strings is the first go-to solution. It goes a long way toward stopping strings from stretching further mid-session to the point where they sound audibly out of tune.
When you restring, locking the string at the tuning peg is another reliable way to limit excessive movement and reduce how often you need to tune.
Avoid playing with too heavy a hand. Using excessive pressure and force, especially on the larger frets, pulls the guitar out of tune more quickly, so a lighter touch helps.
Another common cause is the string slipping at the machine heads. One great way to remedy that completely is to install locking tuners.
Frequently Asked Questions
Why does my guitar go out of tune after a few minutes?
The most common reason is that the strings are still stretching, which is normal with a fresh set. Strings that aren’t wound neatly around the tuning pegs, or that bind in the nut, can also slip during the first few minutes of playing.
Stretch the strings gently after installing them and make sure they’re seated well at the bridge and wound cleanly at the pegs. If the problem continues with older strings, it usually means it’s time for a fresh set.
Do new strings really need to be stretched?
Yes. New strings haven’t gone through any stretching, so they keep lengthening and dropping in pitch as you play.
Gently stretching them by hand after installation, then re-tuning, gets most of that movement out of the way.
Be gentle so you don’t break or overstretch the string. Within a session or two of normal playing, properly stretched strings settle down and hold pitch much more reliably.
Can weather make my guitar go out of tune?
Temperature and humidity both affect tuning. Moving a guitar from a cold space to a warm one, or large swings in room humidity, cause the wood and strings to expand and contract, which shifts the pitch.
Try to avoid sudden, extreme changes and keep your guitar in a stable environment. In very dry or very humid climates, a room humidifier for guitars helps keep conditions consistent.
Will locking tuners stop my guitar going out of tune?
Locking tuners remove one of the biggest slipping points by clamping the string at the peg so there’s no loose slack to work free. That makes a real difference if your tuning trouble comes from the strings slipping at the machine heads.
They won’t fix problems caused by old strings, a pinching nut, or poor intonation, though. Learn how locking tuners work to decide whether they suit your guitar.
Final Thoughts
It’s normal to expect some tuning with any guitar. So many factors play into whether a guitar stays in tune, and because of the nature of strings, many of them are simply natural and unavoidable.
The best routine is to warm up your guitar with ten or more minutes of playing and then tune it. Replace strings once they become too old, never settle for poor quality strings, and stay on top of basic maintenance, calling in an expert technician when a tuning problem is beyond a quick fix.
A quick visual check of the strings, nut, bridge, and tuners before and after playing goes a long way toward catching tuning issues early and keeping your guitar in tune more dependably.
