As much as I'm not a big fan of Lange, I rather hear her trying to take a jab at Big Edie's singing than someone like Julia Roberts trying to even tackle something as precious as "Another Winter in a Summer Town," there's an argument for dubbing if there ever was one. They should use a body/face double for that one as well.
"Some people can thrive and bloom living life in a living room, that's perfect for some people of one hundred and five. But I at least gotta try, when I think of all the sights that I gotta see, all the places I gotta play, all the things that I gotta be at"