Hi, I had similar pain at base of left thumb and eventually found an occupational therapist who sold this brace (from netherlands) that provides enough support. she also gave me some exercises to strengthen the muscle between the thumb and forefinger. This has helped a lot, I still feel it after a longer session but just ice it up a bit. I have a YAS-62 purple logo. hope this might help.Kind of a weird, blue-sky question here...
I have a Yamaha Custom Z alto. Over the many years that I've had it, my arthritis has gotten worse... and especially in my left thumb.
My question is: Could the octave key be re-configured so the paddle is welded to the LEFT side of the rod, instead of the RIGHT side, which is how it is now (and how it is on probably all saxophones in the world, I'm guessing).
I realize that the rod depresses a lever on the right side, further up. So if the paddle were on the left, how would the action depress on the right? I don't know, but maybe you do.
The reason I'm asking: If I keep my left thumb closer to the hand, the base of the thumb doesn't hurt. If I stretch it across to depress the octave key, then... ouch!
Alternatively, do you know of an alto make and model that comes from the factory with an octave key that is easier to depress? (i.e., without bending and stretching the thumb)
If you have any comments for me, let me hear them.