“Jambi” by Tool

"Jambi" is the second track on 10,000 Days, Tool's fourth studio album, and it became a single when it was officially handed to radio on February 12, 2007. Danny Carey, Justin Chancellor, Adam Jones and Maynard James Keenan share the writing credit, the band produced it, and Joe Barresi recorded and mixed it.

It's progressive metal as a math problem you can headbang to. Most of it runs in 9/8, broken up by stretches of 6/4, and the guitar solo is where things get deliciously tangled: Jones plays through a talk box, Chancellor splits his riff into a 4+2 pulse, and Carey lays a 4-over-3 polyrhythm underneath to stitch the parts together. When the solo ends, the drums and bass drop back into 9/8 while the guitar holds on to 6/4, a polymeter that only resolves when the vocals come back. It followed "Vicarious" as a single.

Written with AI assistance from RockLists chart data, MusicBrainz and Wikipedia.