Nantwich Fair came as a suggestion from Ben who suggested it precede Seven Stars. I think it might be easier to use it to follow Seven Stars but we can try it both ways. Certainly it forces you to think as it starts with the same three notes as Seven Stars so it’s very easy to end up playing the other tune.
There is a great Zoom-style class recording of the two tunes together which is just great, but otherwise a slight paucity of recordings on YouTube, so I’ve also put here a recording of Jane Griffiths playing it which I used to learn it.