Zyklus, Kontakte, Klavierstück X

Concert date: 
Sunday, March 31, 1968
Works performed: 
Klavierstück X
Kontakte with piano and percussion
Zyklus
Concert Series: 
City: 
Bratislava
Programme text: 
Not sure why the ensemble members are all listed if they are not playing ensemble pieces. Could be a programme mistake and they could be doing Hymnen instead of Kontakte possibly…