Several decades ago, John H. Steinway (the great-grandson of Henry E. Steinway) narrated an audio tour of the New York factory, where he described the generations-old process of making a Steinway grand piano. In 2011 Ben Niles, the producer behind the documentary film Note by Note, synced the audio tour with present-day footage of the Steinway factory, giving us a glimpse of what goes into making the piano