Posted by I don't think so on January 03, 2004 at 13:58:53:
In Reply to: Re: Re: Re: Yoda Self Tuba Question posted by double tuning slide on January 02, 2004 at 01:21:26:
After the valves and the bottom (normal) tuning slide, there are only two more bows and a bell on a YFB-822. Since this upper tuning slide is NOT the main upper bow, then this cannot be part of the main bugle, unless this is a CC tuba! (If this were part of the main bugle, then there would be one more upper and lower (smaller) bow, and a few more feet of tubing!)
I'm voting on it being a re-routed 4th valve, for improved low register intonation, on the fly.