Rockpedia
Rock branch Full entry · 1988

Math rock

Emerged 1988 Origin USA / Japan Subgenres — Vocals Instrumental
Heaviness
3
Speed
6
Melody
6

Instrumental. Usually no vocals at all.

In short

Odd meters and interlocking riffs assembled like a puzzle, usually without vocals. Post-rock's cerebral cousin.

How it sounds

  • Frequently changing odd meters, often with two guitars in different metres at once.
  • Clean or lightly overdriven guitars in alternate tunings, with tapping and harmonics.
  • Usually instrumental; where there are vocals, they are spoken or whispered.

Hear what that means

Loaded only when you press play — nothing reaches Google before that. 2 of 3 are cued to a second read from the upload's own tracklist.

The specifics

Tempo
100-160 bpm
Song length
4-8 min
Tuning
Altered tunings almost universally, chosen so that open strings ring against fretted notes and produce intervals a standard tuning cannot voice.
Production
Dry, close and unglamorous, with the guitars clean and separated so two interlocking parts stay individually audible. Very little reverb, because reverb would blur the counting.
Written about
Frequently none — much of it is instrumental, Unease, Domestic detail, spoken rather than sung

What each part is doing

  • Guitar Two parts in different metres, interlocking rather than accompanying — one in seven against one in four, resolving every so many bars. Clean tone, because distortion would hide the individual notes.
  • Bass A third independent line rather than a root, frequently in yet another metre, and mixed to be followed.
  • Drums The genre's hardest chair: holding a pulse the listener can find while the guitars are in different time signatures, and marking the point where the cycles realign.
  • Vocals Where they exist, spoken, murmured or shouted rather than sung — Slint's delivery is closer to narration, and much of the genre is instrumental.

What it isn't

That the metres are the point. The name has done the genre real damage: counting is a means, and what these records are actually built on is interlock — two simple parts in different cycles producing a third pattern neither is playing. That is a technique from West African music and from minimalism, and Steve Reich is a more useful reference for Spiderland than any progressive rock record.

Told apart from

  • Post-rock Post-rock hides its difficulty and builds to a crescendo; math rock exhibits its difficulty and has no interest in release. Slint is claimed by both. Side by side →
  • Progressive rock Prog uses odd metres inside long romantic forms with keyboards and virtuoso solos. Math rock keeps them in short, dry, guitar-only pieces. Side by side →
  • Noise rock Both use altered tunings and dissonance. Noise rock organises around volume and abrasion; math rock around rhythm and interlock. Side by side →
  • Mathcore Mathcore is this rhythmic approach played at hardcore's speed and violence, with screaming. Same arithmetic, entirely different temperature. Side by side →

The genres this one is most often mistaken for. Written, not derived.

History

Slint released an album in 1991 with extreme dynamics and spoken vocals that became a reference point for two genres at once, math rock and post-rock. Don Caballero and Battles pushed the rhythmic side to its limit. In Japan, bands like Toe added a melodic, gentle dimension to the same complexity.

Descended from

Siblings on this branch

Sounds like this, elsewhere in the tree

  • Post-punk 1.0 apart by rating · meets it at Rock
  • Krautrock 1.4 apart by rating · meets it at Rock
  • Garage rock 1.4 apart by rating · meets it at Rock

Closest by the three ratings, among genres at least 4 steps away in the tree. A rating match is not a musical claim.