In the 1st work: Thomas Grossenbacher, cello ; Tonhalle Orchestra Zurich ; David Zinman, conductor. In the 2nd work: Ensemble Amaltea (Sylvia Nopper, soprano ; Isabelle Schnöller, flute ; Keiko Yamaguchi, violin ; Judith Gerster, cello ; Eva Schwaar, piano). In the 3rd work: Amar Quartet (Anna Brunner, Igor Keller, violins ; Hannes Bärtschi, viola ; Peter Sómodari, cello). In the 4th work: Michel Rouilly, viola ; Bettina Sutter, piano. In the 5th work: Luzerner Sinfonieorchester ; Michael Sanderling, conductor

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Gegenklang: I. Flimmernd (11:42) -- Gegenklang: II. Adagio (7:19) -- Bergwarts: I. fest (6:53) -- Bergwarts: II. flussig (5:36) -- Bergwarts: III. gasformig (6:14) -- String Quartet No. 2, "Guggisberg-Variationen": Lied (1:03) -- String Quartet No. 2, "Guggisberg-Variationen": Variation 1: Windungen (2:57) -- String Quartet No. 2, "Guggisberg-Variationen": Variation 2: Reflex(ion) (1:24) -- String Quartet No. 2, "Guggisberg-Variationen": Variation 3: Lichtkegel (1:22) -- String Quartet No. 2, "Guggisberg-Variationen": Variation 4: Schattenriss (1:22) -- String Quartet No. 2, "Guggisberg-Variationen": Variation 5: Idylle (2:35) -- String Quartet No. 2, "Guggisberg-Variationen": Variation 6: Im/unter Strom (1:09) -- Poeme lunaire (10:42) -- Klangbogen (11:31)