An oddity: the first publication of the music, by Thomas Ravenscroft

http://www.pbm.com/~lindahl/ravenscroft/songbook/hey_ho.html

doesn't match Beaumont and Fletcher's words (quoted by Jim Dixon upthread), though the two were published close together.

You could maybe make it work by adding B&F's extra half-line to make the round into six parts instead of Ravenscroft's five. Anybody want to try that?