That has been mentioned (by me) on several occasions, and maybe once even in this thread or the similar thread from the same time to which this was the reversed question.Tubaguy56 wrote:Has anybody taken into consideration that if you have two horns of the same bore size (lets say .787) that a .787 on a BBb horn will be less conical than a .787 on a C horn? This would allow for overall better tone quality and more free blowing, given that the instrument, mouthpiece, and player were all the same. Also, nowadays tradition plays a big part of what horns we have to play, I went to IU this past winter to audition for Dan Perantoni, and he said he wouldn't take me unless I actually went out and bought a C horn, seeing as I went in on my BBb Mira 186.
Furthermore, that faster taper is concentrated in a relatively short section of the main bugle. The first five feet or so of both the Bb and C Miraphones are the same, as is the last three feet or so of bell flare. So the faster taper occurs between a diameter of less than an inch to about 3.something inches. That 10 feet of bugle on the Bb is only 8 feet long on the C.
But I don't think you can say for sure which model (the Bb or C Miraphone 186) has the "better" taper design. There is nothing to indicate that a faster taper makes anything particularly better or even more free-blowing. But there is lots of experience to indicate that instruments with faster tapers are more likely to have intonation issues, though that experience is not related to the Miraphone. The taper design surely has an effect on the overtones produced and also on the intonation characteristics of the instrument, but there are lots of ways to adjust the taper here and there to offset other changes. Were it not so, conversions would be impossible rather than just difficult.
As to Parantoni's requirements, I suspect that is a test of commitment as much as anything, and someone of his stature can reasonably expect to fill his studio with only the most committed students. No performance student should expect to get through college without being at least competent on all tubas, and those who have difficulty in changing from one to the other maybe should consider whether they really should be pursuing that line. All the great musicians I've met seem to be able to make such transitions fairly easily.
Rick "not a great musician" Denney









