Oh, I've always seen Melkor as the fallen angel. You now, he started off as one of the Valar, brother and equal to the King of Valar. One of the (if not the) mightiest of the Valar aka Angels. But then fell into darkness and now tries with any means to destroy what's good. Lord of lies and deception (which Sauron later developed even further), the foe of the world.
But now everything seems so clear. Thingol, that evil, wretched creature. Was it maybe him, or rather his spirit, who made Melkor revolt against Eru in the first place? Who knows...Poor Melian.
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Three switched witches watch three Swatch watch switches.
Which switched witch watch which Swatch watch switch?
He who breaks a thing to find out what it is has left the path of wisdom
~Lurker...