Was that the only thing that confused you in that album?.. First I think it's Fingolfin. Who said it was Maglor?
The one that wasn't there is a bit of an enigma. I suspect it's Fingolfin as well somehow, but that's more of a stretch.
They are quite artistic and trying to convey more than just grandiosity. For example one of their more pompous songs: Time Stands Still, about the Fall of Fingolfin - they end with a light major-key part, saying: "The elven king's broken he stumbles and falls...". They are breaking the pathos...