Colin and All,

Thanks for the info. here where I was going with this. I play harmonica so I know about cross keysand since Harmonicas and whistles are both diatonic I wondered if multiple keys were commonlly played on whistles. Lets face it, the Generation "G" whistle is not playable by most adult hands. Is it better to play in "G" on another whistle? My big wonder was minor keys. You really need to buy minor key haromicas if you plan to play mouthharps in a minor key, that is apparently not so with a pennywhistle. Except for Low Whistles I have Generation pennywhistles in every available key including some whistles I have made that work fine. They seem to be in the key "B" strange but they sound nice.

I do tend to research rather heavily. But then its nice to know the ins and outs ain't it?

Don