If you’re a serious Joanna Newsom fan, you probably spent the three plus years between 2006’s Ys and 2010’s Have One on Me occasionally streaming live recordings of then new track “Esme” just to tide yourself over until there was news about a new album. For those of us who have just about memorized the lyrics for all 18 tracks on Newsom’s 2010 release, here’s a treat: on Monday, Newsom performed a new song at a benefit with Philip Glass in San Francisco, and some enterprising person with an Internet connection was smart enough to record the whole thing. You’ll have to go to this link to hear “The Diver’s Wife,” but rest assured that all of the Newsom trademarks are there. Sick harp action? Check. Vocal idiosyncracy? Check. Lyrics framed as a narrative? Check. Characteristic Newsom quality that makes the listener feel as if they’re listening to something that was written in the 19th century? Check. Maybe if we’re all good boys and girls this will turn out to be part of a new album sometime soon.