Upheaval are a four-man wrecking crew from Boston, Massachusetts, who specialize in dramatic, blackened sludge metal - think Eyehategod by way of Mayhem after a cold New England winter. Founded in June 2014 by veteran Boston musicians Justin Doucette (guitar/vocals), Alex Betancourt (drums) and John Belmonte (bass/backing vocals), Upheaval quickly gained notoriety in New England playing a crushing blend of sludge and doom. In February 2015 an East Coast tour expanded the reach of the first demo beyond the northeast United States. A US tour in June 2016 saw the addition of Eric Struth on lead guitar, and brought the self released cassette "Summoning a Giant" across the United States. With the line up sorted out, the band began working tirelessly to craft a new album. Adeptly maintaining the unrelenting heaviness of Summoning a Giant while fully embracing their black metal influences, eight songs were written and Alec Rodriguez of New Alliance Studios in Cambridge, MA was e nlisted to produce and engineer it. The end result, "Altar of Ash", is a half hour opus of aural savagery.