According to the book
Teen Spirit by Jeremy Dean, this song was on Dave's demo-tape "Pocketwatch." The book claims that it was later released on Nirvana B-sides together with "Marigold." We all know that there is no official release of this song, but maybe it really was done by Nirvana and is being kept by Geffen. Anyway, it has been played by Foo Fighters and appears on their single
This Is A Call.