As it turns out, the piano is actually an organ, and has been on the mountain for more than 35 years. Kenny Campbell, a woodcutter from the Highlands, told the Telegraph he carried it up the summit as a stunt to raise money for a charity cancer in 1971.

Campbell said, "It took me four days to get the organ to the top and when I did I played Scotland the Brave. I am quite sure that what they found is the organ. It had no keys on it because I stripped them off and gave them to friends - I had quite a lot of fans in those days."

Campbell, 64, has also carried a beer barrel, a plough and a gas cylinder up Ben Nevis.