Herbert Howells wrote his Clarinet Sonata in 1946 for Frederick Thurston, but it wasn’t published until after Thurston’s death, in 1954, by which point Howells had made extensive changes (particularly to the second movement). In a new recording for Orchid Classics, Barnaby Robson has explored the earlier versions of the Sonata. Jonathan Clinch interviewed Barnaby Robson for the Herbert Howells Society.