[Dixielandjazz] Trumpets and Cornets

[Craig I. Johnson]

Bob Smith stated:
Both the normal trumpet and the normal cornet are concert Bb instruments, although both are made in other keys.
In appearance, the trumpet is much longer than the cornet with sharper bends.
True, though there are trumpets in C and I've seen music for a trumpet in "D". Also,  the older trumpets and cornets 
had at least one substitute lead pipe and valve pipe set to replace the Bb set, which allowed the Bb cornet to be 
converted to play as an Ab instrument.

 Further, I own a 1987 Conn Eb cornet made in the old Worcester MA, Conn factory which plays in the same key and 
range as an alto horn. (It's a gas to play this in duet with a trombone.)

Craig


On 6/9/2005 3:15:33 PM, Robert Smith (robert.smith at mitransport.no) wrote:
> Hello John,
> 
> As Craig says, the cornet is conical from the bell to the first moving
> part, as are all the other cornet-like instruments, e.g. tenor horn,
> euphonium, tuba.
> The trumpet, however, is based on a parabola (again from the bell back to
> the first moving part). If you draw a parabola, and then rotate it about
> the X-axis you will trace out the shape of a trumpet, and all trumpet-like
> instruments e.g. trombone, french horn, sousaphone.
> Both the normal trumpet and the normal cornet are concert Bb instruments,
> although both are made in other keys.
> In appearance, the trumpet is much longer than the cornet with sharper
> bends.
> 
> Cheers
> 
> Bob Smith
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