As someone with Norfolk connections I can confirm that the line "...as the game GO on" is much more authentic than "...as the game GOES on".

The Norfolk dialect is beautiful and expressive and, like all British dialects, can depart grammatically from 'standard' English. If you've never been to Norfolk you should drop everything and go NOW before it is completely colonised by rich Londoners and turns into a rural version of Islington.

By the way, Ewan MacColl sang 'The Dockyard Gate' on the first folk album I ever bought - 'A Sailor's Garland' by Ewan MacColl and A.L.Lloyd, XTRA 5013. Like Peter Bellamy, Ewan sang Sam Larner's version of the song.