There are two bands with this name. 1) Asperity is a heavy metal band from Sala, Sweden. Their line up is: Petri Kuusisto - guitar
Stefan Westerberg - drums
Peter Kronberg - vocals and bass
Johan Jahlonen - guitar They have released one album in 2004 entitled The Final Demand. ---- 2) Conservative Christianity and post-hardcore scree may seem like the most disparate of extremes, but the post-screamo rock sextet Asperity has that juxtaposition beat.