“A large, multi-story blue building houses the funnel wall attraction designed by three collaborative artists including Christoph Roßner, Annette Paul, and Andre Tempel. The three artists knew that the building needed to have rain gutters, so why not get a bit creative? This system of mousetrap drain and gutters features various sized metal cones that play music when it rains.” — source
http://inthralld.com/2012/01/musical-rain-gutter-funnel-wall-in-dresden-germany/
