I have a fairly new condo house with a neighbour on the other side of my wa= ll. Which is now days built quite thick. I never hear anything from their= other side. Doesn't mean that they don't hear me. As far as I can tell, music, TV, a bit loud talking, none of that the neigh= bours hear. But if I play the piano, it disturbs them. My curiosity is why the piano penetrates the wall, and more general, how ca= n I tell what noises would wake them up, and what noises would be ok. it's= just I guess a "normal" sort of concrete wall from a modern house. Lindy --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .