sound reduction

[Mike Kurta]

    John, from a little knowledge about sound reduction in motor home 
generators, I found that there is open cell and closed cell foam and various 
permutations of those.  Some are made specifically for sound reduction.  I 
had a similar problem with the same piano/disklavier combination in a home 
with MARBLE floors, high ceilings, smooth walls and no drapes on floor to 
ceiling windows.  Finally softened the hammers into mush (with the owner's 
OK) and they were satisfied.  Luckily I moved out of state afterwards......
    Mike Kurta