Posted by Jay Bertolet on June 06, 2003 at 21:11:28:
In Reply to: Re: What do you consider "good intonation?" posted by Frederick J. Young on June 06, 2003 at 19:34:56:
"A three valve instrument which is in tune on its open tones and in tune using the first,
second or third valves alone is very much out of tune on various valve combinations. 23 is
about 15 cents sharp, 13 is about 32 cents sharp and 123 is 53 cents sharp. Simple 5 valve
tubas also suffer the same disability especially when the 4 and 5th valves are introduced."
The last time I checked, the 4th and 5th valves on 5 valve tubas were designed to counteract the intonation problems inherent in the non-compensating design. It's just another approach, besides the compensating system, to address the same intonation issues. An approach that's working for a great many of us players using those "simple" horns. Something here doesn't add up.
My opinion for what it's worth...