If you, like me, enjoy playing on your guitar to music from your PC, you will share my annoyance at the fact that bands often tune up or down a step or so for different songs. While it might be simple enough to tune your guitar up and down as and when necessary, I think that everybody will agree that it's a bit of a pain. Here's a solution for people like me who tend to have, well, an indolent approach to their guitar.