My current listening room (basement) is very bright. Sheetrock walls, ceramic tiles and only an area rug. I would like to tone it down quite a bit. I am looking for some ideas on panels, art or whatever that will look at bit more stylish than the gray foam or cork that is normally used.Don't really want to put rugs on the wall neither. I was thinking of a canvas paintings but I think that paint will act as a reflective surface. There are no windows so no curtains. Any ideas and/or recommendations?