A death metal vocal duet РSimoom and ̠nimus style! From the YouTube video description:

“Simoom performing “A Blaze So Lovely” at the Phoenix in Petaluma CA June 3rd 2011 opening for Fallujah and Aenimus. Featuring Seth from Ænimus as guest vocalist. This song can be found on our EP titled Sever Your Losses from 2010.”