B-flat, 2 flats
I (Katherina Weyssin, that is) think the setting in Practise for Dauncinge wants a more complicated repeat structure to fit the dance neatly:
Consider the music as coming in three strains, A, B, C, starting at each double barline.
This repeat structure will take the dancers once through the dance:
A BBC AAA BBC
The dance is typically done 1-4 times in a row.
The version we are starting with can be found here as part of Practise for Dauncinge
R.C.M Ms 1119
Advice for beginners:
Focus on the second or fourth line to begin.