If you're a guitarist, you've probably heard your instrument go slightly out of tune every time you clamp a capo onto the fretboard. A capo is the simple spring-loaded mechanism that raises the pitch ...

If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. Versatility is a characteristic that all guitar players ...

The gig bag of many guitarists will likely hold a good deal more than the guitar itself. Spare strings, a tuner, some tools, and possibly a capo. The lattermost is used to change the pitch of strings ...