For sweet and birdlike I had a Gen soprano F, and apparently I totally lucked out getting it straight off the shelf, for report afterward suggested that its attractive character was a matter of sheer happenstance. Hornpipes in particular became something extra-special on it; fairy-like, if you will. It was sweet even into the full extent of the 2nd octave. Now that was a whistle.Byll wrote:I find that the higher than D whistles either grate on my ears, or sound very sweet and birdlike.
Of course for general purposes you can't use a whistle in that pitch all the time. Unfortunately I don't recall what happened to it, but I think it adopted the bodhrán player.