Hi everyone, I'm an intermediate level player, also an older guy who started late in life. I'm making very good progress but have a lot of difficulty playing scales. Main problem is my arthritic thumb which starts to hurt after doing repetitive "thumb unders" on the scales. I've read the discussions on Hanon and Czerny and find it interesting that so many of you feel good music like Bach's "Well-Tempered Clavier" would be just as effective, if not more so. What about scales in particular? Can anyone suggest other alternatives to accomplish the same kind of skills without so many repetitive movements of the thumb? Thanks in advance for your help.