Grayfolded is a two-CD album produced by John Oswald featuring new edits and re-mixes of the Grateful Dead song "Dark Star". Using over a hundred different performances of the song, recorded live between 1968 and 1993, Oswald, using a process he calls "plunderphonics", built, layered, and "folded" all of them to produce two large, recomposed versions, each about one hour long.