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Tool Songs in Unusual Time Signatures: Schism and Lateralus Explained

“Schism” changes meter, while “Lateralus” is known for a 9/8–8/8–7/8 pattern associated with its chorus. Here’s how to hear the difference.
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Start with “Schism” and “Lateralus”: both are well-known Tool examples of unusual meter, but neither is best understood as having just one time signature from beginning to end. “Schism” changes meter across sections; the familiar 9/8–8/8–7/8 pattern associated with “Lateralus” is a shorthand for a particular passage, especially its chorus.

Two Tool songs to start with

Song Passage described Reported meter
“Schism” Verse pattern in Rick Beato’s analysis Alternating 5/8 and 7/8
“Lateralus” Pattern associated with the chorus 9/8, 8/8, and 7/8

“Schism”

Rick Beato’s analysis of “Schism” describes the verse as alternating between 5/8 and 7/8, and discusses other counts elsewhere in the song. That means the useful answer to “What time signature is ‘Schism’ in?” is that its meter changes—not that one number applies throughout.

Beato also notes that some passages can be counted in more than one way. His breakdown is an analysis, not an official band score or a definitive ruling on every bar.

“Lateralus”

The title track is widely associated with a 9/8–8/8–7/8 sequence. Louder describes the song as moving between those meters, and Drumeo connects the same sequence to the track’s original working title, “987.” The sequence is a memorable way to recognize the chorus pattern, not a claim that every section of the song follows those three counts.

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Why listeners may count a passage differently

Time signatures describe how beats are grouped, but a complex riff can make the grouping less obvious than a simple count suggests. In a Guitar World interview, Tool bassist Justin Chancellor explained: “And we’ll even overlap time signatures at points, or take an odd meter and straighten it out within a riff.” When parts overlap or a riff makes an unusual meter feel more regular, listeners and musicians may describe the same passage differently.

For a first listen, focus on the groupings rather than trying to settle every bar immediately. Hear whether the pulse seems to break into groups of two and three, and notice where the grouping changes. That approach makes the shifting feel easier to follow without treating a single count as the only possible interpretation.

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How far these examples go

“Schism” and “Lateralus” are well-supported starting points, not a definitive list of every Tool song in unusual meter. The available evidence here does not establish a catalog-wide ranking or settle every passage with an authoritative score.

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