Let's face it, after 45 minutes or so of practicing the right hand thumb wants to take a break. Well, being the intense clarinetists that we are here at Clarinet Pages, we practice much more than that - right?
Here's the solution for thumb fatigue! I just installed it on my Bundy - my always "ready to play" clarinet. So far, it's been as comfortable as it looks.
Thanks again to Phil and also to Xaioyu!