Mathcore

Mathcore, also known as math metal, is a rhythmically complex and dissonant style of metalcore. It has its roots in bands such as Converge, Botch, and The Dillinger Escape Plan. The term mathcore is suggested by analogy with math rock. Both math rock and mathcore make use of unusual time signatures. Math rock groups such as Slint, Don Caballero, Shellac, and Drive Like Jehu have some influence on mathcore, though mathcore is more closely related to metalcore. Prominent mathcore groups have been associated with grindcore.