Can you offer advice regarding the interior design of a Music Room for piano recitals?

Simon Markson of Markson Pianos says, 'Placing the piano in an ideal position would depend on various factors, such as door openings, windows,proximity of radiators but generally speaking a grand piano should be kept away from direct light source and at least 3 feet away from a radiator. It would be positioned at an angle to the audience whereby they could view the hands of the pianists on the keyboard.Naturally they would need to leave around 3 feet space for the piano stool too.