Here's the tune for "The Ploughboy", as requested at the top of the thread. It is the one with "whistles o'er the lea" in, and was recorded by Pears with piano accompaniment by Britten. This version comes from Michael Raven's "One Thousand English Country Dance Tunes", self-published, 1984. Raven gives the format as AAB, and I think it would probably end on an A section also.
X: 168
T:THE PLOUGHBOY
M:2/4
L:1/16
B:One Thousand English Country Dance Tunes, ed. Michael Raven
K:C
:gf|
e2g2 c2e2|A4 G2c2|Bcde f2e2|e4 d2gf|
e2g2 c2e2|A4 G2c2|Bcde f2B2|c6 :|
K:G
g2|
f2f2 f2f2|g2G2 G2g2|f2f2 f2f2|g4 G2g2|
f2f2 f2f2|g2d2 e2B2|c2A2 d2F2|G6 ||
I'll post a couple of East Anglian versions of the Merry Ploughboy laterWassail! V