Iannis Xenakis' Idem A, Idmen B performed by the Warsaw Percussion Group and the Polish Chamber Choir Schola Cantorum Gedanensis under the direction of Jan Łukaszewski.
The Polish premiere of the piece took place on 22 September 1986 in the Concert Hall of the Fryderyk Chopin Academy of Music as part of the 29th Warsaw Autumn International Festival of Contemporary Music.
The Warsaw Percussion Group performed in the following line-up: Stanisław Skoczyński, Bogdan Lauks, Stanisław Proksa, Henryk Mikołajczyk, Robert Piechowiak, Barbara Skoczyńska.
[photographed: Stanisław Skoczyński]
