The best, most lingering of them is the third of Mauricio Kagel's orchestral Etudes, a pithy demonstration of how to transform witty charm into snarling menace in a few moments, though neither Beat Furrer's Chiaroscuro or Peter Ruzicka's Clouds outstays its welcome, either.

it’s Widmann’s title track that stands out: inspired by Mozart’s interest in the glass harmonica, it features a blend of strings, accordion and tuned percussion emulating that instrument’s long, keening tones, everything shaped “lightly and vitreously... like a musical suspension of gravity”, as Widmann describes it.