Although Kairos’s rate of production has decreased in the past few years, the Viennese label still regularly releases discs of music by contemporary Austrian composers. This CD of two recent orchestral works by Friedrich Cerha, celebrating the composer’s 90th birthday, is a welcome addition to Kairos’s four previous albums of his music. While Cerha’s recent chamber music adheres to classical forms, his orchestral music from the same period eschews them, revisiting instead the principles laid out in his sound-mass works from the late 1950s such as Spiegel.