After writing the song, Swift sent Dessner a voice memo of her playing it on a rubber-bridge guitar that he'd gotten her. He used the same kind of guitar to play on "Invisible String
Dessner started building on Swift's voice memo. "Taylor had specific ideas from the beginning about references and how she wanted it to feel, and that she wanted the Haim sisters to sing on it," he recalled to Rolling Stone
. "We had them record the song with Ariel Reichshaid."
After receiving Haim's recording from LA, Dessner and Swift then put it all together with the band at New York's Long Pond Studios.