“L’Via L’Viaquez” by The Mars Volta
From the 2005 album Frances the Mute

The Mars Volta is one of the most intense, inventive and successful prog bands operating today. It’s tough to hang that label on a modern band — especially one that’s commercially successful — and have it stick, but in this case I don’t think there’s any question that this is a “prog” band. They might be able to boil this 12-minute track down to a digestible, radio-friendly 4-minute single, but that doesn’t change the fact that the album is centered around a 33-minute multi-part epic that sounds like Meddle-era Pink Floyd on speed… if that’s possible.

The only complaint I have about The Mars Volta is their production, or (most likely) more accurately, their mastering. The loudness wars have hit this band hard, and they’re passing the abuse on to your eardrums.