highland-piper wrote:
A smallpipe chanter that could overblow would be something new. I'd buy a chanter that could overblow.
But of course with a cylindrical bore you have the same issue that clarinets and kavals have: a gap.
So an A smallpipe chanter would go:
G A B C# D E F# G A > d e f# g# a b c# d e
In other words, in the low register you have a chanter in the key of A, in the 2nd register you have a chanter in the key of E. It gives you a 2 1/2 octave range but missing notes in between.
You'd have to have keys for the missing b and c#. This work could well be shared, as on the clarinet, say, a key for a note below Low G for Low F#/high c#, and a key above High A for High B, viz
(F#) G A B C# D E F# G A (B) > (c#) d e f# g# a b c# d e
Just as on clarinet you have that awkward leap over the registers, where you're playing High B on a key way up there, and the next note up is C# done with all the fingers down and a low key depressed.
Or you could have both keys below Low G, that is, keys for Low F# and Low E which overblow to give High b and High c#, viz
(E F#) G A B C# D E F# G A > (b c#) d e f# g# a b c# d e
which might be easier, going from High A to Low E/ high b having two keys depressed down below Low G.
It's quite feasible, clarinets have been doing it for hundreds of years.
You'd probably need a register key, too, to have the 2nd register speak reliably and clearly.
There's a great kaval maker, Alex Eppler, who added keys to fill in that gap on the kaval (more keys because the kaval is chromatic).