Paint that helps diffuse sound?


A recent article in the Wall Street Journal about a doctor that built a new $3 million dollar house to house his own organ, indicated he used a specialty wall paint to to help diffuse sound. Anyone done the same?
buconero117
A rough surface will diffuse the sound. Sound will travel along a smooth wall and a hardwood floor, like a wing it will sail. You can mix your own paint. You just need to know what to add. Tom
I thought people studied medicine to save lifes, not to make money.

$3 MM barely buys a 2 BR apartment in New York these days.
Lead paint have RFI shielding.
It also holds up much stronger than any other paint. I think it's still used to paint steel vessels.