Karlheinz Stockhausen

Treue (Fidelity) and Erwachen (Awakening) are the eleventh and twelfth hours of Klang, two trios written by Karlheinz Stockhausen in 2007 (the Verlag dates Hours 7 to 12 as 2006 to 2007). They close the series of chamber pieces made from the material of Harmonien and Schönheit (Stockhausen Edition no. 87), here recast for a clarinet family trio and for cello, trumpet and soprano saxophone.

Treue is for bass clarinet, basset-horn and E-flat clarinet, and runs about half an hour in five sections and an ending. Erwachen is for violoncello, trumpet and soprano saxophone and has an opening, then five sections. Stockhausenspace names Petra Stump, Rumi Sota-Klemm and Roberta Gottardi as the clarinettists in Treue, and Dirk Wietheger, Marco Blaauw and Marcus Weiss as the cellist, trumpeter and saxophonist in Erwachen. Erwachen was recorded on 6 and 7 March 2010 and Treue on 29 and 30 May 2010. Kathinka Pasveer is credited with the recording supervision and the mix, and Günther Kasper with the engineering. Erwachen was first played in Brussels in October 2009 and Treue in Cologne in May 2010 for the MusikTriennale. The closing section of Glanz, on the previous disc, is described as a pre-echo of Erwachen.

This is Stockhausen Edition no. 90, published by Stockhausen-Verlag as one CD in 2010.