I haven't yet heard any of Sonic Youth's "NYC Ghosts and Flowers", but from the reviews, it sure sounds a lot like Mogwai, doesn't it? "Washing Machine" sounded exactly the same as "Daydream Nation", so after coming full circle over the course of those seven years, SY finally took cues from the Bristol and Chicago lo-fi scenes, i.e. they finally fed back sounds from bands who they profoundly influenced back into their own music.