Amorphis guitarist Tomi Koivusaari has launched a new solo project called Bjørkø. The band’s debut album, “Heartrot,” will be released on December 1. A video for the first single, “The Heartroot Rots” (feat. Carcass’ Jeff Walker), can be found below: “Heartrot” Track Listing: 01. “The Heartroot Rots” (Ft. Jeff Walker / Carcass) 02. “Vaka Loka”…