Having recently heard an Irish bouzouki, I am intrigued by slighty odd versions of familiar instruments. Does anyone here play what I guess is called Low or Bass D pennywhistle? (Someone told me that it figures largely in Riverdance, so has come into some popularity....) Is it fingered the same as a standard pw? Do ordinary stores stock them (I have never seen one, so I guess they don't). Or any other facts -- are they a new instrument, or an old one? Easy to play, hard?

yours, Peter T.