Mathcore

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Metalcore
Stylistic origins:	Hardcore punk – Heavy metal music - Death metal
Cultural origins:	late 1980s North America
Typical instruments:	Guitar - Bass - Drums (Double kick)
Mainstream popularity:	Little to none during the careers of the bands, has gained much popularity in recent years
Subgenres
Deathcore - Moshcore - Mathcore - Swedecore
Other topics
Breakdown - Fashioncore - List of bands

Mathcore (also known as tech. metal, tech. hardcore, and math metal) is a style of metal recognized for a high level of technical musicianship. The subgenre has its roots in bands like Deadguy, Converge, Kiss It Goodbye, Training for Utopia, Botch, Turmoil, Coalesce, Bloodlet, Groundwork, Resurrection, The Human Abstract, Acme, Between the Buried and Me, The Dillinger Escape Plan, Nerv, Into the Moat, Starkweather, Protest The Hero, and The Number 12 Looks Like You.

The music is usually filled with discordant, somewhat technical riffing, complex time signatures and song structures, and passionate, energetic vocals. Songs played by bands of this style tend to vary from mere seconds in length to over 15 minutes and rarely feature a conventional verse-chorus song structure. Bands of the mathcore genre, because they are not commercially viable, are often categorized differently depending upon the whims of journalists. Because metalcore is a hardcore punk/heavy metal crossover, bands such as Converge, and The Dillinger Escape Plan are often referred to as "hardcore," and still others, such as As the Sun Sets and Daughters, are labelled as grindcore and noisecore, though only influenced by one or both genres. Other styles of music, such as blues-rock and free jazz, have been known to inspire various mathcore bands. Coalesce have been influenced by the former, to the extent of releasing a Led Zeppelin cover EP named There Is Nothing New Under the Sun, whereas The Dillinger Escape Plan are known to credit the latter.