Hold the violin vertically in your lap the first time you do this. As you get more comfortable, you can do it quickly on your shoulder. [2] X Research source
Turn the A and E strings counterclockwise or the D and G strings clockwise to loosen them. [4] X Research source
If you’re fixing the A or E string, pull to the right of the violin neck. Pull to the left for the G or D string.
Wind until the string can stay taut without you having to support it with your finger anymore. When the string is coiled against the wall of the pegbox, it provides the tension needed to hold the peg in place and prevent it from slipping. Push inward while you turn the peg to help it grip the edges of the pegbox holes. [7] X Research source
If the tension in the peg is restored, the pitch will hold constant while you play. The standard pitch for each string is:[9] X Research source G string (G3): 196 Hz D string (D4): 293. 66 Hz A string (A4): 440 Hz E string (E5): 659. 26 Hz
Check the peg for damage once it’s out—if it’s cracked or warped, you’ll need a replacement. Wipe the peg clean with a dry cloth to remove any grease or buildup that might be causing it to slip. [12] X Research source
Peg compound often looks like a tube of chapstick. Remove the cap and twist the bottom of the tube to apply it. Some players use soap, wax, chalk, or rosin in place of compound for a quick fix, but these can be too abrasive and damage your peg or pegbox. [14] X Research source If there are no shiny rings around the peg, that means it is not a good fit for the peg hole and should be replaced.
Continue winding the string towards the peg head so that it wraps up primarily against the wall of the peg box. This will help maintain tension on the peg. Wind until the string is taut and close to its final tension. Push gently inward as you turn so the conical peg fits fully into the peg holes.
If the peg is secure, the pitch on the string will remain largely constant throughout the day. The standard pitch for each string is:[18] X Research source G string (G3): 196 Hz D string (D4): 293. 66 Hz A string (A4): 440 Hz E string (E5): 659. 26 Hz
Reinsert the peg and turn it a few times to evenly distribute the drops. Wipe away any extra liquid on the peg, and be careful not to let the drops get on the varnish of your instrument.
If needed, rest the head of the violin on a soft surface so you can apply more pressure to the peg while you turn it. [21] X Research source Pushing inwards is a short-term solution to constantly slipping pegs. If the problem continues, apply compound or rewind the string. Be careful not to push too hard. Violins are fragile (especially old ones) and the pegbox might crack if you apply too much pressure.
If you use soapy water, wait for the peg to completely dry before you insert it back into the pegbox.
If needed, purchase a violin case humidifier to maintain the right conditions inside your case. [24] X Research source In a pinch, place a damp sponge in a plastic container inside your case to raise humidity.
Graphite acts like a dry lubricant and will equalize the tension at all parts of the string. Graphite also helps pegs that are too tight. Remove the peg from the pegbox and apply graphite to the shiny bands where the peg rubs against the pegbox. Apply graphite every time you restring your instrument for consistently smooth results.
