Kit out your acoustic guitar with a set of Yamaha FS50BT Anti-Rust Light strings and immediately raise the definition and brighten up the sound. This pack includes gauges .012 to .052.
If the strings of your Yamaha APX acoustic guitar have worn out, they can be replaced with this specially calibrated set to retain or even improve the sound. This pack of Yamaha AEP12 Phosphor Bronze Light strings includes gauges .012 to .053.