Since its foundation in 1978,[2] it has featured major international figures of experimental and avant garde music, including guest composers such as Karlheinz Stockhausen, Louis Andriessen, Terry Riley, Brian Eno, John Cage, Steve Reich, Jonathan Harvey, Helmut Lachenmann and Sir Harrison Birtwistle.
Jonathan Harvey was composer in residence, and the festival also featured the Arditti Quartet, Nieuw Ensemble, Louis Andriessen and musikFabrik.
The programme included a livestream by Space Afrika, and BBC Radio 3 live broadcasts with Explore Ensemble, GBSR Duo, and London Sinfonietta, featuring music by Joanna Bailie, Oliver Leith, Cassandra Miller, Arne Gieshoff, Angharad Davies, and James Dillon .
Chaya Czernowin was composer in residence, and the programme featured composers and artists including Brigitta Muntendorf, Georgia Rodgers, Mauro Lanza & Andrea Valle, Eva Maria Houben, James Dillon, Enno Poppe, Cath Roberts, Clara Iannotta, Bára Gísladóttir, Hannah Kendall, Laurence Osborn, Eva Reiter, John Butcher, Laurence Crane, Luke Nickel, Lisa Illean.
The programme featured composers and artists Jürg Frey, Liza Lim, Philip Venables, Pat Thomas, Jan Hendrickse, Raven Chacon, Andreas Borregaard, Tyshawn Sorey, Justė Janulytė.
George Lewis, Hans Werner Henze, Anna Korsun, Charles Uzor, Tyshawn Sorey, Mariam Rezaei, Jürg Frey, and Bára Gísladóttir.