A kite-shaped harp sat just before the peak, with an amazing view of the valleys and mountains beyond. Apparently, the harp plays the sound of the wind. It's quite interesting to look at, and it isn't something I've seen up the top of a mountain before.
There were a few strings broken and unfortunately I couldn't hear it making much noise whilst the wind was blowing.
It does make a sound when the strings are plucked, but I've never played any string instrument in my life so it sounded horrendous when I had a go. I bet it would sound beautiful in the hands of a more talented musician, however.