Aribert Reimann's Unrevealed for baritone and string quartet, to texts by Lord Byron, performed by Barry McDaniel (baritone) and the Kreuzberger Streichquartett: Winfried Russmann (first violin), Friedegund Riehm (second violin), Hans-Joachim Greiner (viola), Peter Gerschwitz (cello).
The Polish premiere of the piece took place on 25 September 1981 at the Fryderyk Chopin Academy of Music Concert Hall during the 25th Warsaw Autumn International Festival of Contemporary Music.
[from left to right: Hans-Joachim Greiner, Friedegund Riehm, Peter Gerschwitz, Barry McDaniel]