Hence the interval between the fundamental and first overtone is more than an octave, which means that the true pedal note is rather flat. Taken as a unit, these look like a cylindrical pipe at low frequencies. The modern trumpet, cornet, horn, etc all contain a lot (and in fact, about the same proportion) of cylindrical tubing and a bell that flares a lot faster than a straight-sided cone. A flugelhorn, alphorn, good euphonium, etc are very similar to this. HOWEVER the conical nature of the bore changes the frequencies of these overtones and makes them resemble all (even and odd) multiples of the fundamental. A saxophone is a conical instrument essentially closed at the mouthpiece end, and has only odd order overtones. Another aspect of this is the fact that the clarinet is about the same length as the flute, but can play about an octave lower, as it is quarter wave resonant, while the flute is half wave resonant. A clarinet is a cylindrical instrument essentially closed at the mouthpiece end (as are almost all wind instrument except the flute) and has only odd-order overtones. A flute, for example, is a cylindrical instrument open at both ends, and has both odd and even overtones. The first issue is one of being open at one end, or at both ends. and a french horn is cylindrical? Chris Stratton - 01:18pm Brass Instrument Maker in Training Actually, it's a bit more complicated. Can anyone explain this apparent discrepancy?. However, in the brass world a trumpet, a cylindrical bore instrument, is bright while a fluglehorn, a conical bore instrument, is dark. cylindrical > dark/warm, conical > bright. One thread leads to a "physics of music" web site that explains the lack of odd order harmonics contributing to the warm/dark sound of the clarinet, a cylindrical bore instrument contrasted to the brighter sound of the sax, a conical bore instrument. Tonal qualities of conical vs cylindrical bores Tonal qualities of conical vs cylindrical bores Ron Hofacker - 11:22am I am intrested in the tone qualities of conical bore instruments vs cylindrical bore instruments.
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