Led Zeppelin "In My Time of Dying"

Led Zepelin's take (circa 1975), of "In My Time of Dying", which is a traditional gospel song, given the blues treatment, not only by Zeppelin, but by a number of other artists who recorded it.  Among them, are Blind Willie Johnson, who originally recorded the tune in 1927, Charlie Patton (recording it in 1929), and Josh White, (recording it in 1933).  After these subsequent recordings, Bob Dylan made a version in 1962, John Sebastian and John Fahey both recorded the tune in 1971, and before Zeppelin, a band called Shocking Blue, recorded it in 1973.