Posted by Lew on August 26, 2003 at 09:00:19:
In Reply to: Vienna Valves on the Tuba posted by Chuck Jackson on August 25, 2003 at 23:14:55:
I have seen at least one tuba with 4 Vienna Valves, so they can be made with more than 3. It would be interesting to try a side by side comparison with piston and rotary valve horns.