However, if you are exploring Garritan Instruments for Finale or another Garritan instrument library for the first time, you may well be wondering what a keyswitch is, and what it has to do with instrument playback. If you are an experienced Garritan instruments user, you are probably already familiar with the concept of keyswitches. You are here: Tutorials > Garritan & Human Playback > Keyswitches Keyswitches