Topic: And an organ that produces pitches from waves
Admittedly, this is getting a little off the subject of both Pianoteq and the Houston Piano site that I linked to earlier, but I think this will still be of interest--an esplanade and steps in Croatia designed to act as an organ. Or an enormous, stone. wet harmonica:
https://www.youtube.com/watch?v=n86pF-wQKrw
EvilDragon, are you in Croatia? Is this sea organ well-known there?