The first thing you hear on Phoebe Snow’s terrific Atlantic debut LP is a great wash of electric guitar. “Baby Please” by Carolyne Mas follows and then comes Rod Stewart’s “Gasoline Alley.” ‘Rock Away’ is Snow’s coming-out party. “The critics are implying that I did this rock’n’roll thing to be commercial and mainstream,” Snow says from her living room where we sit on her black couch so she can lie down and nurse her bad back. “We’ll, that’s not the only reason I did it. If I denied that, I’d be an asshole.”