chordiac arrest were formed in the summer of 2011 by a group of medical students. although they have performed at some events in aberdeen, most recently being joint winners of the open vocal group class (v21) in the aberdeenshire music festival, they have never entered the voice festival uk. they disbanded in the summer of 2012, as final year of medicine spread the group far and wide on rural placements. however a reunion of six members formed gcs-3 (the gangster coma scales - 3) who performed at a christmas concert in 2012, with the american group pentatonix as their inspiration.