I honestly thought this was a comedy sketch when it started. Then I thought, hold on, that's Simon Rattile, and started it again and paid proper attention.
Contemporary classical music doesn't always work for me, and Ligeti is on the borderline of "interesting, but I'm not convinced I like it". But as this wore on, it went from being "interesting" to "engrossing" as the dynamics drew me into the piece. It's actually brilliant, and brilliantly performed by the soprano and the orchestra (and Rattle's "solo" is perfect):