The crew at the Rough Type Curation Lab nearly blew their deadline this year, but at the last moment they’ve coughed up a mixtape for the final evening of 2013. (Spotify required.) It opens with a full-body assault from Supergrass. And then it gets intense. You want to time this so that “The Midnight Choir” ends and “Left of the Dial” begins right at the stroke of twelve. Yes, the Curation Lab thinks at that level of temporal granularity.