I’m a highland piper (nearly 40 years) and a whistle player (over 35 years) and I’ve never understood why a piper thinks he needs a “chanter whistle”. I guess it’s laziness.
A whistle can’t do what a chanter can do, and visa versa.
Highland pipe technique is based upon gracenotes which don’t work on flutes or whistles. There are three reasons they don’t work 1) the response time isn’t quick enough 2) the gracenotes don’t sound correctly 3) flutes and whistles aren’t stable enough.
One example will suffice. The “go-to” gracenote, the standard working gracenote, on Highland pipes is done with the upperhand index finger. Due to the extreme stability of the Highland chanter, this gracenote pops out very clearly with pronounced chirp and does not destabilize the melody note it’s played upon. But try it on the whistle:
xxx |xxx (the initial melody note, bottom D on a normal whistle)
oxx | xxx (the gracenote, lifting only the tophand index finger)
xxx | xxx (the initial melody note repeated)
The other problem with the Highland chanter is the half-closed fingering system
x| xxx | xxxx “low G” (G natural)
x | xxx | xxxo “low A”
x | xxx | xxoo B
x | xxx | xoox C#
x | xxx | ooox D
x | xxo | xxxo E
x | xoo | xxxo F#
x | ooo | xxxo “high G” (G natural)
o | oox | xxxo “high A”
The flattening and dulling effect of leaving down the index, middle, and ring fingers of the lower hand while lifting the ring finger of the upper hand means that hole 3 must be very large and preferably higher on the whistle. The fact that hole 1 must do G natural with all the upperhand fingers open means that it must be very small and preferably lower on the whistle. This brings holes 1, 2, and 3 closer together than is normal, quite cramped on a small whistle, though OK on a larger one.
So it’s possible to move the holes around and get notes that will sound in the low octave. But the 2nd octave, I’m sure, is hopeless once you get beyond D (x xxx ooox) because E must be fingered x xxo xxxo. Try playing xxo xxx on a D whistle and it’s not the normal sounding A that you get. Then try xoo xxx in the second octave and see if you get a good B.
Why don’t these lazy pipers just learn to play whistle? It’s not rocket science.
Oh BTW interesting that you have an offset hole! Highland chanters are made with all the holes inline and offset holes won’t work with the Highland chanter grip. So your guy must not be gripping the whistle as he does the chanter, or else he’s playing the Highland chanter with a strange grip.
Here’s a video where a guy clearly shows the standard Highland chanter grip. Note that if the lowest hole (hole 7) were offset it could not be sealed or reached by the little finger
http://www.youtube.com/watch?v=Ymxz6ve5SZ0