If you like the traditional/heavy metals, Hessian is essential. They're from ME and they're getting it right. http://hessian-music.bandcamp.com/
Thrillhouse is the band of one of the co-organizers of this show. They've played with bands like High Spirits, they just played with Night Bitch last week, and they're opening for Oz/October 31 in Boston later this week.
Almost all of the extreme metal bands included are a who's-who of the southern New England scene. There's nary a dud in the whole bunch, I can't even point out my favorites because they all rule. Abnormality, Crypter, and Bog of the Infidel are not to be missed. I'm also very much looking forward to checking out Sewer Goddess, a two-piece industrial project. Churchburn is mems of Vital Remains.