U2DMfan
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There's one section of a group chant appearing in Lanois' trailer, which had its chords reappear on a fan clip over which the same melody is sung, clearly followed by the line "there's no line on the horizon" (If you listen loud with some really good headphones). the same chord sequence appears, transposed though, on the "edgeback" clip Adam posted on the official site.
Two different songs.
The song in the Lanois trailer is a choral singing something along the lines of "Oh Oh, Oh-oh-oh, oh-oh you know their names, so call them out"
and on NLOTH it's something like "NOOOO line on the horizon".
Because of the way it was recorded it's deceptive.
Plus, there are no discernable chord structures in that NLOTH clip.