My dear, that’s the entire point. You do not torture people to extract information from them – I already know everything this wretch could say.  No, the purpose here is to correct bad behavior, and remind them who is in control.  Right now, he just finds this music annoying.  Soon it will drive him mad, and madder still as it dawns on him that he can’t turn it off or shut it out.  Only I can do that.  Whether I will depends on him pleasing me.