Baluji Shrivastav is one of India's greatest sitar players and musicians. Now UK based, he has formed the Inner Vision Orchestra, comprised of blind and visually-impaired musicians from around the world. Baluji talks to Peter about his long held passion for music and in particular the sitar, for which he is probably best known. Corinna Bauer is one of the leading researchers at Harvard, who has found that there are anatomical and functional differences in the brains of early blind people, which enable their occipital lobe (the part of the brain used for seeing), to take on other roles, including that of hearing. The effect is that a blind person may experience improved hearing as a result.