Wilkes-Barre, Pennsylvania groove metal and progressive project. The metaphysical name promises music that transcends conventional heavy metal's three-dimensional constraints.

Philadelphia groove metal pioneers who helped define the metallic hardcore sound of the mid-2000s. One of the most influential heavy bands to emerge from the Philly scene.

Palmyra/Middletown, Pennsylvania groove metal project. The name blends adrenaline with morphine — stimulation and sedation in chemical equilibrium.

Bethlehem deathcore project from the Pennsylvania underground.

Pennsylvania groove metal and hardcore act from Myerstown, active since 1997 before eventually operating under a different name.

Shillington, Pennsylvania groove/thrash metal band channeling heavy mid-paced stomp alongside driving thrash aggression rooted in 1990s East Coast metal.

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A progressive metal outfit from the Philadelphia suburb of Broomall, Pennsylvania, Clockwork blended symphonic prog complexity with technical metal muscle, drawing comparisons to Yes and Dream Theater. Their lone album Surface Tension showcased lush keyboards, intricate rhythms, and soaring guitar melodies.

Tullytown, Pennsylvania's Concoct stir together death metal's extremity and groove metal's rhythmic swagger, concocting a sound built for pit-ready heaviness.