Originally released in 1976, Presence was recorded during a whirlwind 18-day session at Musicland Studios in Munich, Germany. The album - which peaked at #1 in the U.S. - crackles with energy on Zeppelin classics like “Nobody’s Fault But Mine” and “Achilles Last Stand,” and delivers powerful jolts of the group at its visceral best.

The companion audio disc that accompanies Presence has five unreleased reference mixes from the sessions, which reveal works in progress. Along with alternate incarnations of “For Your Life,” “Achilles Last Stand,” and “Royal Orleans,” there is also the previously unheard instrumental curiously titled “10 Ribs & All/Carrot Pod Pod (Pod).”