In her novel, "Music and Silence", Rose Tremaine used a myth about Christian IV having sound channels in his castle, so he could hear in his state room what the band was playing in the basement. Now 3 such channels have actually been found. Go to:
http://www.rosenborgslot.dk/pdf/Musikanal-%20Vinterstuen.jpg for a fascinating pic of a hole in the floor. Arne. To get on or off this list see list information at http://www.cs.dartmouth.edu/~wbc/lute-admin/index.html
