Karlheinz Stockhausen, Bruno Maderna and Pierre Boulez conducting the rehearsals for the world première of Gruppen on 24 March 1958 in Cologne.

Andrew Clements reviews Sunday night’s performance of Gruppen, “one of Stockhausen’s most iconic works”, with Martyn Brabbins, Baldur Brönnimann and Geoffrey Paterson conducting the London Sinfonietta and the Manson Ensemble.

Find the full review on The Guardian.

The concert will be broadcast in Radio 3's Hear and Now on 19 October.