Reply To: Sax Key Extensions?
Talk to your local instrument repair person. They can be quite ingenious when it comes to customizing instruments for individual needs.
Back in 2000, I worked with a trumpet player whose fingers were paralyzed, and together with two engineers we fashioned an air-powered trumpet that operated via touch pads situated about the valves. Shortly after that, I wrote an article about the instrument and did some research on similar instruments I learned about: a flute for a man missing two fingers, a sax for a man with one arm, and a drum set for a man missing half a leg. These all involved musical instrument repair people who came up with a solution. Yours sounds like an easy fix!