I love Waulking songs. Really believe I must have been born in the wrong time and place. Or maybe in past life I was in Scotland.

If you read the comments under the video there is some speculation about the instrument. See quote below.

"That's Jim Sutherland & either he has discovered the ancient Gaelic Tiompán, or it is it simply an ancient Chinese instrument, like a Zhu?

But seriously, I've written to Jim to find out more, so watch this space! ;-)"