- Date:1971 / Copy of 2012
- Technique:Digital print and facsimile print on photographic paper and cardboard
- Descriptive technique:A polyptych of five photographs and a mask with sheet music from the performance
- Edition/serial number:4/5 + A.P.
- Category: Photography, Performance
- Entry date:2017
- Register number:DO02795
- Long term loan of Fundación Museo Reina Sofía, 2017