Posted by Frederick J. Young on December 03, 2001 at 19:10:41:
In Reply to: Re: False tones... posted by Kenneth Sloan on November 30, 2001 at 22:38:50:
0.7*f0 produces a tone that is 82.5 cents sharp of Eb 5 spaces below the bass clef staff on the BBb tuba. It would be better if the designers adjusted the shape to yield 0.667 f0 which would be a very good Eb. As I have said many times Jodi Hall proved experimentally at The C. G. Conn Research Lab that this is the real fundamental of the BBb tuba and that the pedal Bb is only a preferred tone. Brass instruments do not work as does a simple string which is used as a crutch in teaching open tone series to students who know little physical science. Years ago I had on old Wunderlich BBb tuba made more than a century ago by the instrument maker (at that time of the Chicago Symphony). It's fundamental was D five lines below the bass clef staff.
My two afganis on this subject!