With a new CD titled Drinking Songs for Lovers, one might be forgiven for believing that Jack Grace should ease up a little. Songs like “Morning Margaritas,” “Drinkin’ and Gamblin’,” and “You Drank Yourself into a Corner” are certainly convincing evidence that the singer, songwriter and guitarist who has made a career out of following no one’s rules but his own is probably going to keep doing his thing until his liver lays down the law.