Water Song

As their entry into Musichackday in Amsterdam, Germans Alice Zappe and Julia Lager wired up an umbrella to play music when hit by raindrops (video): http://www.youtube.com/watch?v=pS5ELW-gqUk . According to one article, the new and improved version, which the pair are now working on, can be hooked up to generate the sounds of different instruments: http://www.deccanchronicle.com/channels/sci-tech/others/now-umbrella-sings-rain-414