Posted by Frederick J. Young on December 09, 2001 at 22:46:26:
In Reply to: Re: Re: Re: Re: Re: Re: Double Tubas posted by Lew on December 07, 2001 at 21:15:55:
It may have been a Gronitz with three rather than 5 double valves. As far as intonation such an instrument would be the same as a 4 valve compensating one but less stuffy.