This tutorial is about how to replace a string on a cello. The process is rather simple, and I included a trick that I use to keep the string from slipping off the peg. Replacing one string takes just a few minutes, but replacing all the strings could take 10 or 15 minutes. You should never remove all the strings from the cello at once, and you should use care when removing worn out strings because sometimes they snap. Similarly, you should use caution when tightening new strings because overtightened strings may also snap.
The strings of cellos need to be replaced every year or when they start to wear down. Strings can last longer than a year, but if you play regularly, they do need to be changed once a year. Violins and Violas require more frequent string changes, and this replacement tutorial can also be used to remove and install strings on those instruments.
Step 1: Loosen Pegs
Loosen the pegs by turning them to reduce the tension on the strings. This allows the strings to be removed. There are four pegs on a cello, two for the higher strings and two for the lower strings. In this tutorial, I am replacing a lower string. In the picture, the lower strings are on the left and the higher strings are on the right. The lower strings are also thicker than the higher strings.
Loosen the lower pegs by turning them clockwise or loosen the higher pegs by turning them counter-clockwise. This should cause the string to relax.