What is a Guitar Capo?

A guitar capo is a perfect tool to work with when you don't want to have to change the chords for a song. In fact, for a lot of women, when we sing guy songs a capo makes it possible for us to key it to suit ourselves. I use it extensively with my band, as there are plenty of songs that I want to sing but they are in the key to suit my male lead guitarist. He is willing to work out the chords to a new key but this is much easier. I can also use...