In this video you will learn how to make a foot switch out of a old keyboard. You can then control your computer with your foot while you sing and play guitar. You will have some programming or configuration to do in the software you use. If you use Ableton LIve you can map keys to function. It's easy... :)
Step 1: Simple As Destroy
This is a very no brainer tip to build a foot switch. As you can see on the video, all you have to do is to take a old keyboard and remove the keys you don't need. Then you use it as a foot switch to control your software while you play guitar. Of course you will have to map the keys to the functions you want to control. In Ableton Live for exemple, that is very easy to do. Enjoy !