What goes into the making of a piano? How do the pianos of today differ from those which Liszt or Debussy might have played? In the central London workshop of Steinway's, there are stripped down pianos everywhere, skeletons with their strings and frames exposed, and benches with vices and chisels like any carpenter would use. The scene is much like it would have been a hundred years ago, and Steinway still employs apprentices who are trained in the craft and art of piano maintenance. Ulrich Gerhartz, their Director of Concerts and Artist Services explains what goes into the crafting of Steinway's delicately balanced instruments, and pianist Stephen Hough reflects on how changes in the manufacture of pianos means that the sounds he makes today are very different from the virtuosi of the past.