The guitarist for the art-rock band Radiohead has been named the BBC’s newest composer-in-residence. Jonny Greenwood will fill the role for the next two years, and is committed to composing at least one orchestral work in that time. Greenwood, who is a classically trained viola player, has never formally attempted composition before, although Radiohead’s songs have been hailed by many in the art music world, and pianist Chris O’Riley has even transcribed them for solo piano.