CHAPTER 4: Dulcimers in the British Isles since 1800 > Dulcimers in the Midlands & the North
Leslie Evans - tuning
The tuning is of the same type as Bill Fell's, but having two fewer treble courses does not reach to the key of Bb.
He tunes to a fork (a'), so that
"if I'm playing with a piano I'm in straight away".