This version is well-known. Because it was copied, not covered.

I am biased towards original versions so ignore my liking it better. Two electrified folk guitars, a bass. No drums, no bow, no theatrics. It’s the opposite of the big heavy sound of Led Zeppelin’s version yet it’s not that different.

It starts gently. The rhythm gets more intense, angry. Then the lead builds up the intensity leading to an anguish filled climax. It’s dark and beautifully simple.