I've recently bought a cheap battered second (probably mode) hand sousaphone on a garage sale. It is in faily bad shape, but the valves look ok. The instrument is made of a metallic grey alloy which ...
I am playing Eb tuba with 4 valves (4th at my right hand pinky). Usually I have my fingers more or less straight out over the valves, resulting in the tips for all other than the pinky is sticking out ...