Yi and iMi

"Yi" and "iMi" are songs by American indie folk band Bon Iver from their fourth studio album, I, I (2019). The songs are the first two tracks on the album, with the former being a 31-second phone recording that serves as an intro to the latter. Both songs were produced by Justin Vernon, Brad Cook, and Chris Messina, with additional production by BJ Burton. "Yi" and "iMi" feature additional production by Trevor Hagen and Andrew Sarlo, respectively.

"Yi" and "iMi" are built off an audio snippet of cardboard sliding over a radio that is switched on-and-off. Vernon is credited as the sole lyricist on both songs, with him singing about the themes of comfort and familiarity. Recording of "iMi" took five years and nearly 30 collaborators to complete. "Yi" was recorded in the winter of 2014 at the April Base in Eau Claire, Wisconsin, which began the recording process of "iMi" that was completed in 2019 at the Sonic Ranch in Tornillo, Texas. Credited composers and musicians include James Blake, Velvet Negroni, Camilla Staveley-Taylor, Aaron Dessner, CJ Camerieri, and Wheezy, amongst others.