How does the oldest grand piano sound?
The oldest-surviving English grand piano, one of the first ever made, was built by the piano maker Americus Backers in London in 1772 and has now been returned by English Heritage to the home of its former owner, the Duke of Wellington.
The Today programme's reporter Tom Bateman went to hear it being played by Pianist and composer Professor David Owen Norris.
You can can find out more about the piano in concert on the English Heritage website.
First broadcast on BBC Radio 4's Today programme on Monday 13 May 2013.