Rockpedia
Heavy metal branch Full entry · 1995

Instrumental prog metal

Emerged 1995 Origin Global Subgenres — Vocals Instrumental
Heaviness
7
Speed
7
Melody
7

Instrumental. Usually no vocals at all.

In short

No vocals: the melody is carried by guitar or keyboard, and the structure can be as complex as it likes.

How it sounds

  • The melody is carried by guitar or keyboards, with no vocals.
  • Long technical structures with many sectional changes.
  • Clean production with every instrument separately audible.

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
100-180 bpm
Song length
5-9 min
Tuning
Six-, seven- and eight-strings across a record, chosen per piece, with tunings selected for the harmonic colour a particular composition needs.
Production
Pristine and detailed, mixed so four instruments playing independently stay individually legible. Without a vocal to anchor attention, the arrangement has to do that work.
Written about
None — the music is the argument, Structure, Motion, Landscape, by title

What each part is doing

  • Guitar Carrying melody, harmony and rhythm at once, with sweep picking, tapping and legato as normal vocabulary rather than as showpieces. There is no singer, so the guitar is the voice.
  • Bass A genuine second melodic voice, frequently fretless or extended-range, playing counterpoint rather than support.
  • Drums The narrative instrument: dynamics, metre changes and fills mark the sections that a vocal would otherwise delineate.
  • Keyboards On the Liquid Tension side, trading unison lines with the guitar; elsewhere providing the harmonic bed the guitars have left.

What it isn't

That instrumental metal is a demo reel. The good records are compositions with themes, development and return; the bad ones are exercises, and the two are easy to tell apart after a minute. The genre attracts the accusation because its worst examples are extremely visible on the internet, which is a fact about how guitar playing is now shared rather than about the music.

Told apart from

  • Progressive metal Progressive metal without a singer, which changes the arrangement more than it sounds like it should — every structural cue has to come from the playing.
  • Djent Animals as Leaders appear on both lists. Djent is a rhythmic idea; this is a whole compositional approach that frequently uses it.
  • Math rock Both are instrumental and rhythmically complex. Math rock is clean, dry and small; this is virtuosic, polished and large.
  • Post-rock Post-rock is also instrumental and builds across long forms, with the opposite relationship to technique — it hides difficulty where this displays it.

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

History

When Dream Theater's members released an instrumental album as Liquid Tension Experiment in 1997, they proved the genre works without a singer. Animals as Leaders and Scale the Summit built whole careers on the format, helped by the fact that instrumental music travels internationally with less friction.

Descended from

Siblings on this branch

Sounds like this, elsewhere in the tree

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