Correct placement of your capo is essential. The capo should sit just behind the fret, not between frets or on top of frets – much like your finger when fretting the note. This will ensure a clear tone, free of buzzing or rattling. Finding the right pressure for the capo is also important. Too little pressure and the strings will buzz and lose their tone. Too much pressure is just as bad—the strings will go out of tune.

How to apply the correct amount of pressure depends on the type of capo you’re using. D’Addario capos have knobs called micrometers which that adjust the tension. You’ll want to turn that knob until the strings ring open without any buzz. It may take a little practice, but you will eventually be able to hear and feel the right amount of pressure for your instrument.