I can't quite tell the difference between powerviolence and grindcore... I think they're basically the same, 'cept that PV kinda leans toward hardcore punk and grind leans toward (death)metal I guess. So yeah, Magrudergrind allegedly play the former. It's fast, raw, punkish and energetically aggressive. Also, they have no bass player. I guess it's safe to recommend this album to every grind fan out there.