[mrcaptainbob]

I inadvertently was successful at something similar. I made a basement workshop, later used by my youngest for 'band' practice. I hung 2x4's from the floor joists with maybe an inch or two clearance. I used 2x4's verticly to suspend them. These were on 16 centers, but were trued up where the joists were not. I put up 1/2" drywall on them. THe only insulation was against the brick on the outside wall. I was really surprised at how little the sound penetrated the upstairs. Don't know why..it just didn't. What Pushkins suggests is right on. Get the sound deadening insulation, seal any openings to prevent the sound leaking through. The third to eliminate is structural transmission of the sound vibrations. That''s a hard one to do unless you slip some foam rubber under all the contact points of that room. Even the nails holding the walls to the ceilings will transmit that. The most you can do is the insulation and the sealing.