Music for the deaf

It sounds impossible: music for the deaf. But that odd sounding concept is exactly what Norwegian pianist Leif Ove Andsnes and the Mahler Chamber Orchestra are trying to achieve. Scientific studies show that, under the right conditions, the brains of deaf people show a similar enjoyment of music to the brains of people who can hear perfectly well. Al Jazeera's Nick Spicer reports from Cologne, Germany.