It's obvious from the greasy opening blues vibe in "Exodus of Venus," the title track of Elizabeth Cook's first album in six years, that something is very different. Produced by guitarist Dexter Green, this set is heavier, darker, and harder than anything she's released before. Its 11 songs are performed by a crack band that includes bassist Willie Weeks, drummer Matt Chamberlain, keyboardist Ralph Lofton, and lap steel guitarist Jesse Aycock…