Ramble On is the greatest rock song ever recorded.

Let’s be clear. We are not saying Ramble On is the greatest song ever written. That would go to any half dozen Dylan tunes.

But Ramble On is a sonic masterpiece.

It begins like a heartbeat. A pulsing, low rhythm that feels alive, like something breathing under the floorboards. Then the acoustic guitar tiptoes in, and for a moment the song is gentle, almost folk.

That moment does not last. It builds without warning. Bonham holds back, Jones weaves bass lines like silk, and Page hangs electric. Plant’s voice layered over itself serves as solo guitar.

And when the chorus hits, it is already too late. You are in it. The song has taken over.

And then there are the god-awful lyrics.

They are absurd in the best way. Tolkien references appear—Gollum, Mordor, the evil one—dropped into a love song like a stoner with a crush and the devil’s right hand. It should collapse under the weight of its own silliness.

But it does not. Because that kind of brashness is the essence of rock and roll. Quoting your favorite fantasy author in a blues-rock love song is not just music. It is fucking gospel.

Zeppelin believed in it. That was the trick.

The beauty of Ramble On is in its contradictions. It is soft and heavy. Romantic and ridiculous. It rambles, but not for too long — it’s only 4 1/2 minutes.

This is the band at the peak of its power, doing what few could, or can: playing with reckless freedom and absolute precision.

Dylan wrote better. Bowie dreamed weirder. Springsteen told harder truths.

But no one ever recorded a better rock song than Ramble On.