Need to transpose a song No problem. Simply clamp on the GA100 quick change guitar capo and play like you would without it. YouÕll use the same chord fingerings as always, but now you are in a different key! The spring-loaded design is far easier to use than strap or thumb screw styles. The GA100 is so easy to use, in fact, removing it mid-measure for a key change is no problem at all. Diecast zinc alloy provides the necessary rigidity, while silicone padding provides uniform pressure and protects the neck/fingerboard.