Not Exactly Music To My Ears

Robbie usually spends some time in the evening sitting in front of his laptop with his headphones clamped to his ears. If I want to speak to him I have to wave my arms in the air to get his attention, it is so frustrating. Even worse is his inability to be quiet, I am glad that he uses headphones because what he calls music doesn't sound very melodious to me. The problem is that Robbie is not the most tuneful person at the best of times and the headphones make his 'singing' completely tuneless. Unfortunately he gets rather carried away with his music and he sits there rocking backwards and forwards and tapping his fingers, I try to ignore it but it is so difficult. The rocking motion makes the low moaning sound (Robbie calls it singing) fade and increase in volume. His singing is not unlike the sound a cow makes, so with the fading in and out it is more like a cow on a swing! Robbie has many endearing qualities, but his 'singing' is more than flesh and blood can stand!