This is just too much fun.
Here is Increase Mather's pamphlet An Arrow Against Profane and Promiscuous Dancing Drawn out of the Quiver of Scriptures (Boston 1684). You understand, he's against mixed dancing because it may lead to mixed dancing.
Of interest, on p.12 he points out that in the description of Jacob's marriage in Genesis, we read of a marriage, but no dancing! On p. 21 he rhetorically asks, Is this a time for Jigs and Galiards! On p. 23 he explains that David and Miriam's dances were "Religious Dances accomodated to the State of the Old Testament-Church." And, of course, those were not "mixt" dances.