A capo goes across all six strings at the same fret, held down by a clamp or lever
A capo is a device that clamps across your guitar's neck to shorten the strings and raise their pitch. You place it perpendicular to the fretboard, behind the fret you want to use as your new starting point, then tighten it until all six strings ring clearly. The capo does the job your index finger would do if you were barring a chord, but it frees up your hand to play the rest of the chord or melody.
Most capos work one of two ways: a screw mechanism that you turn to tighten, or a quick-release lever you flip or squeeze. Both types clamp a rubber or felt pad against the strings. The pad must sit directly behind the fret wire itself—not on top of the fret, not between frets—or the strings will buzz and sound dead.
Key Takeaways
- Place the capo's pad directly behind the fret wire you want to use, not on the fret itself or between frets.
- Tighten the capo only enough to make all six strings ring clearly; over-tightening bends the strings and throws the guitar out of tune.
- The capo must sit perpendicular to the fretboard so the pad contacts all six strings evenly.
- Screw-type capos take longer to adjust but give you precise control; lever capos are faster but require practice to position correctly.
Position the capo behind the fret, not on it
Hold the capo in your hand and look at where the rubber or felt pad sits. That pad needs to land in the space directly behind the fret wire—the metal strip running across the neck. If you place it on top of the fret or between two frets, the strings will not ring clearly and will buzz or sound muted.
Slide the capo onto the neck at the fret you want to use. For example, if you want to capo at the second fret, position the pad so it sits in the gap between the first and second fret wires, but closer to the second fret wire. The pad should be as close to that fret wire as possible without sitting on top of it.
Make sure the capo sits perpendicular to the fretboard—straight across, not tilted. If it angles toward the headstock or the body, it will press harder on some strings than others, and the strings on the loose end will buzz or not ring at all.
Tighten until all strings ring, then stop
Once the capo is positioned, tighten it gradually. If your capo has a screw, turn it clockwise a quarter turn at a time. If it has a lever, flip or squeeze it partway, then check the result before you lock it fully.
Pluck each string one at a time—all six. Listen for a clear, ringing tone on every string. If any string sounds dead, muted, or buzzes, the capo is either not positioned correctly or not tight enough. Loosen it, reposition it slightly, and try again.
Stop tightening as soon as all six strings ring clearly. Over-tightening does real damage: it bends the strings sharp, throws your guitar out of tune, and can warp the neck over time. The capo only needs to press hard enough to stop the strings from vibrating freely—the same pressure you would use to hold down a barre chord with your finger.
Screw capos versus lever capos
A screw capo has a thumbscrew or handle on the side that you turn to tighten the clamp. These are slower to adjust but give you fine control over how much pressure you explore. They work well if you move the capo often during a song or if you want to be very precise about tension.
A lever capo has a hinged arm that you flip or squeeze to lock the clamp down. These are faster—you can move them and lock them in seconds—but they take practice to position correctly because the lever position is either locked or not locked; there is no middle ground. Some lever capos have a tension adjustment screw on the back, which lets you dial in how tight the lever clamps.
Neither type is better overall. Screw capos suit players who change capo position mid-song or who want maximum control. Lever capos suit players who want speed and do not move the capo often. Try both if you can, because the choice comes down to your playing style and what feels natural in your hand.
Check the capo position on different frets
The capo works the same way at any fret, but the neck gets narrower as you move toward the headstock. At the first or second fret, the neck is wide and the capo sits easily. At the seventh or eighth fret, the neck is narrower, and you may need to adjust the angle slightly to keep the pad perpendicular.
If you capo high on the neck—say, at the ninth fret or beyond—check that the capo does not touch the body of the guitar or interfere with your hand position. Some capos are designed to work all the way up the neck; others are not. If the capo hits the body, you may need a different model or you may need to angle your hand differently to play.
Remove the capo without damaging the strings
When you are done using the capo, loosen it before you remove it. If you have a screw capo, turn the screw counterclockwise. If you have a lever capo, flip or release the lever. Do not yank the capo off while it is still clamped tight, because the sudden release of pressure can bend the strings or cause them to snap.
Slide the capo off the neck slowly. Store it in a case or gig bag pocket where it will not get crushed or lost. Check the rubber or felt pad every few months; if it is worn, cracked, or hard, it will not grip the strings evenly and you should replace it or buy a new capo.
Troubleshooting buzzing and muted strings
If one or more strings buzz or sound dead after you put the capo on, the problem is almost always position or pressure. First, check that the capo is perpendicular to the fretboard. Tilt it slightly one way or the other and pluck the strings again; you may find a sweet spot where all six ring clearly.
If tilting does not help, loosen the capo and move it a fraction of an inch closer to the fret wire. The pad should be as close to the fret as possible without sitting on top of it. Tighten again and test each string.
If the strings still buzz, the problem may be the capo itself. Some cheap capos have pads that are too soft or too hard, or clamps that do not explore pressure evenly. If you have tried repositioning and tightening and the strings still do not ring clearly, the capo may be worn out or defective, and you may need to replace it.
Frequently Asked Questions
Does a capo go on every string?
Yes. The capo clamps across all six strings at once. If it is not touching all six strings evenly, some will buzz or sound muted. Make sure the pad sits perpendicular to the fretboard and contacts every string.
Can I use a capo on an acoustic and an electric guitar the same way?
The technique is the same, but acoustic guitars have thicker strings and a wider neck, so you may need to explore slightly more pressure on an acoustic. Electric guitars have thinner strings and a narrower neck, so you need less pressure. Start with light pressure and increase it only until the strings ring clearly.
What happens if I leave the capo on my guitar overnight?
Leaving a capo clamped on the neck for hours can bend the strings and warp the neck slightly, especially if the capo is over-tightened. Always loosen or remove the capo when you are done playing. If you forget and leave it on, loosen it when ready and let the neck rest for a few hours before you play again.
Can I capo at the first fret?
Yes, you can capo at any fret from the first onward. Capo at the first fret if you want to raise the pitch of open chords by one semitone. The positioning and tightening technique is the same as any other fret.
Do I need a capo if I can play barre chords?
A capo and a barre chord do the same job, but a capo is faster and easier on your hand during long songs. Many players use both: a capo when they want to play open chord shapes in a higher key, and barre chords when they want to move the shape around the neck. A capo also lets you play open strings that would be muted by a barre chord.