Author: Chris P
Date: 2007-01-06 20:47
Double reeds are closed - the reed aperture closes in the same way a single reed closes against the mouthpiece rails when it's blown.
An oboe is a closed conical tube with a double reed (as is a bassoon, heckelphone and sarrusophone), put a single reed mouthpiece on it and it will still be an oboe - and a soprano sax (and tarogato) is exactly that - a closed conical tube but with a single reed mouthpiece - it still overblows an octave in the same manner all closed conical tubes do.
A clarinet style mouthpiece made with a square tip will still work in the same way one with a curved tip rail does - they'll work provided a good seal is made between the reed and the rails no matter what shape they are, as long as they're made to fit one another.
A closed cylindrical bore will always overblow a 12th no matter what type of reed is used. If you can find a double reed large enough to fit a clarinet (with a throat size of 14.6+mm!), it will still behave like a clarinet in that it overblows a 12th, but obviously the sound will be different.
Former oboe finisher
Howarth of London
1998 - 2010
Independent Woodwind Repairer
Single and Double Reed Specialist
Oboes, Clarinets and Saxes
NOT A MEMBER OF N.A.M.I.R.
The opinions I express are my own.
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