jack

which I think is the one you're describing, although the chain was a reel and it was a right and left through instead of a turn

Yes.

(must have been, I can remember dancing it

Didn't you come and Gay with us? That muddled me, when you were suddenly behind me :)

If you want to look up ceilidh dances, this page is good.

Ooh.

I remember Pete struggling to notate ballroom; that did not lend itself to transcription at all easily.