[Dixielandjazz] Valve Trombones

[Robert S. Ringwald]

 Robert Smith wrote:

(snip)
> This can be overcome by having two slides side-by-side joined together. 
> The mouthpiece would be fitted to the top piston of the right-hand slide, 
> and the bottom piston would feed into a semi-circular tube at the 
> mouthpiece end leading to the top piston of the left-hand slide which 
> would lead to the bottom piston connected to the tube leading to the bell.
(snip)

And the music comes out here.

--Bob (The Music Goes Round and Round) Ringwald