there are four versions following the original rough draft , but the changes made in them were slight , and i give the poem here in the latest form , noting only that originally the minstrel seems to have responded to the 'bidding ' much earlier -- at line 5 , which read 'then harken -- a tale of immortal sea-yearning - , andthat eldar in line 6 and elven in line 23 are emendations , made on the latest text , of 'fairies ' , 'fairy ' .