The acutal discussion and the full version of this sea ballad is discussed at length here:
http://bbprivateer.com/howehiss.htm

In the introduction to shanties -- a partial version is given by William Wood.

It should be noted that:
The original text exists in Trinity College in Cambride,( MS.R,3,19,t.Hen.VI.) and is listed with Clene Maydenhod (From the Vernon MS.,ab.1370 A.D., in the Bodleian Library, Oxford.

The version with notes is listed in entirety on this page.