The concert Social_event was performed Hold by the WDR Rundfunkorchester Köln and the WDR Radio Choir Cologne under conduction from Arnie Roth , with guest performers Benyamin Nuss and Juraj Čižmarovič joining Becoming_a_member the orchestra .

The concert Social_event was performed Hold by the WDR Rundfunkorchester Köln and the WDR Radio Choir Cologne under conduction from Arnie Roth , with guest performers Benyamin Nuss and Juraj Čižmarovič joining Becoming_a_member the orchestra .

The Rockpalast show in Cologne , Germany on 16 February 1979 was filmed Create_artwork and broadcast by WDR TV channel .