It's more than eight years since a disc of Clemens Gadenstätter's wonderfully engaging ensemble piece Comic Sense was released here, but the music of the Austrian, a former pupil of Helmut Lachenmann, is still hardly known in Britain. This portrait collection, including pieces composed before and after Comic Sense, only deepens the mystery of why no orchestra or ensemble has been tempted to explore his work. The most recent music is 2009's three-movement work for two pianos, two percussionists and orchestra, Fluchten/Agorasonie I; it recognisably belongs to the same vividly imagined, bravura soundworld as Comic Sense, creating a music that is exhilaratingly discursive. Of the two earlier works, 1997's Ballade I is the more intriguing. Sung to a text by Gadenstätter's regular collaborator Lisa Spalt, it makes vocalist Anna Maria Pammer and pianist Florian Müller equal protagonists in acting out the implications of the vivid verbal imagery, becoming much more a two-way dramatic scena than a conventional song cycle.