This is the theme song of the film "Dead Man" by Jim Jarmusch, composed and performed solo by Neil Young.
This is the long version of the song from the promotional CD single of the soundtrack album. Unfortunately this version is not on the soundtrack itself or on the film DVD. Copyright holder is Vapor Records. The CD single has the following writing on it:
NEIL YOUNG Music From and Inspired by the Motion Picture DEAD MAN
IN-STORE PLAY COPY, NOT FOR SALE Property of Vapor Records. Surrender On Demand.