How to change strings

At some point, students want to know when they should change strings. Unfortunately, there’s no easy answer to that question because a number of factors determine string life. For example:

1) string material (steel degrades faster than nylon);

2) physiology (some people’s hands contain very corrosive oils);

3) and, of course, the amount of playing.

Generally, there are three indications that strings should be replaced:
1) when they acquire a “dull” sound;
2) when there’s difficulty tuning;
3) and when there’s excessive corrosion (easily visible).

Once you’ve determined your strings need to be replaced, here are several tutorials on how to proceed.

For Acoustic guitars:

For Classical guitars:

For electric guitars: