Jesus Is My Savior Trump Is My President T-Shirt . The gown is one of more than a dozen items from Ms. Swift’s personal archive featured in installations across the V&A galleries. Danby’s painting is “so her vibe,” the curator Kate Bailey said of Ms. Swift, gesturing to the lovesick girl and her assortment of trinkets — “the dress, the scarf.”It was not yet noon on a muggy July day in London, and yet Ms. Bailey, a senior curator in the V&A theater and performance department, had already clocked more than 8,000 steps on her iPhone pedometer as she rushed about the museum overseeing the Taylor Swift installation. The V&A galleries, spread across multiple floors, stretch seven miles. (The exhibition, “Taylor Swift: Songbook Trail,” will be open to the public through Sept. 8.)“Whose idea was it to put a trail around the whole museum?” Ms. Bailey asked as she arrived, cheerful and panting, in the gilded Norfolk House Music Room. The V&A acquired the room in 1938, when Norfolk House was demolished, and reassembled it in its entirety, panel by panel, in 2000.Ms. Swift’s “Speak Now” blasted from speakers, and her iridescent tulle ball gown, worn on the back cover of the album, was encased on a mannequin in a vitrine in the center of the room, like a ballerina in a giant music box.