Yamaha CG172SF Use and Care Guide - Page 8

Changing Strings on an Electric Guitar Changing strings on an electric guitar is much like changing strings on an acoustic guitar, except for the bridge. Instead of a set of bridge pins, the strings are usually passed through holes in the back of the guitar. Look at the other strings to get an idea how they are fastened. It is best to change one string at a time. Changing Strings on a Classical (Nylon String) Guitar Classical guitar strings, in almost all cases, do not have a ball end on the string. This means that they must be tied to the bridge. Note: The guitar comes with the strings neatly tied, as shown here; however, you can tie the stings to the bridge any way that you wish.