Kendall is probably the "Old Wag" who said it.
Y'all need to understand Kendall. After being cleared on a technicality of that serial streaking of bodegas in the South Bronx, he was unsuccessful in clearing up his sinusitis by crapping size 13 Bass weejuns and has now started a new treatment which involves devouring one backup light from a '58 Edsel every third meal. Keep us posted Kendall.
Good info El Swanno......I had a site bookmarked on Uillean and Northumbrian pipes, but I seem to have erased it for some reason. If I retrieve it, I'll post it. And I can see how the tone would be liquid if you're using 16" of water to play them. Do they have a spit valve?