The Grateful Dead performs two sets at Essen's Grugahalle in March of 1981. WDR's Rockpalast captures the magic for German televison -- including a special guest: Pete Townsend of The Who. The Grateful Dead performs two sets at Essen's Grugahalle in March of 1981. WDR's Rockpalast captures the magic for German televison -- including a special guest: Pete Townsend of The Who. The Grateful Dead performs two sets at Essen's Grugahalle in March of 1981. WDR's Rockpalast captures the magic for German televison -- including a special guest: Pete Townsend of The Who. The Grateful Dead performs two sets at Essen's Grugahalle in March of 1981. WDR's Rockpalast captures the magic for German televison -- including a special guest: Pete Townsend of The Who.