Dave Thomas: Somewhat aged musician & dancer, living near Inverness/Forres/Findhorn in Scotland. Very broad interest and knowledge of things folk song, tune and dance. English Concertina player/enthusiast and singer. Pastimes include making harmonies/chordings/accompaniments. Recently published an easily read book on this called "Harmony: A Personal Approach", available through Lulu online publishers for a modest fee. Do email me.