- Klavierstuck XIV (Sheet+Audio)

Klavierstück XIV, also called Geburtstags-Formel (Birthday Formula), was composed from 7–8 August 1984 in Kürten as a 60th-birthday gift for Pierre Boulez, to whom the score is dedicated. The premiere was played by Pierre-Laurent Aimard in a birthday concert for Boulez on 31 March 1985 in Baden-Baden. With the addition in 1987 of a part for girls’ choir, it became act 2, scene 2 of Montag aus Licht (Stockhausen 1998a, 306, 633). Two months before composing this first component part of Montag aus Licht, Stockhausen said: I have had the feeling for some time that Monday will be very different—very new for me too, because I have the feeling Monday is the reverse, because it’s the birth. So it’s the reverse of everything that I have done up to now. Most probably all the formulas will be upside-down, will be mirrored: like The Woman is in respect to the men. I think all the structural material all of a sudden is going to change drastically in the detail. (Stockhausen and Kohl 19