Derek Paravicini was born premature - brain damaged and blind. He can barely count, can't read Braille and yet has an extraordinary musical talent.

After hearing a piece of music once, he can play it on the piano, improvising as he goes.

He has been performing since he was about eight years old and now, at the age of 30, is preparing for his most ambitious performances so far.

Next month he will play entire concerts accompanied by a full orchestra, where he will take requests from the audience and even invite people to dictate the style in which the piece should be played. Today reporter Sanchia Berg interviewed Mr Paravicini and asked for a song request.