Those of us following Weezer on their nerdy, cryptic journey will note that the opening of Summer is not a quote of Vivaldi’s Summer suite, but the second movement of his suite for Winter. Folly? Creative misdirection? Who knows. Where parts of SZNZ: Spring sounded like program music for Ren fairs, Summer fits more neatly with their house style: the triumphant self-doubt of “What’s the Good of Being Good,” the bookishness of “Records.” Then there’s “Blue Like Jazz,” which reminds you that summer isn’t just the season of iced tea and poolside sits, but wildfires and floods. And “Cuomoville,” which makes explicit what fans of the band have always known: Their music isn’t just a break from the world, it’s a little world unto itself.