Leonard Cohen performs on stage at the Musikhalle on 4th May 1970 in Hamburg, Germany. (Photo by Gunter Zint/1970 K & K Ulf Kruger OHG/Redferns)

Leonard Cohen performs on stage at the Musikhalle on 4th May 1970 in Hamburg, Germany. (Photo by Gunter Zint/1970 K & K Ulf Kruger OHG/Redferns)