The Unsound Adelaide series, introduced four years ago by festival artistic director David Sefton, celebrates experimental and underground club music, with the 2016 event running over two days this weekend.

Cortini, the keyboardist for Nine Inch Nails, was scheduled to perform a solo experimental synth audio-visual work at the Thebarton Theatre on Friday, but the Festival announced late yesterday that doctors had advised he was unable to fly to Australia.

London-based Babyfather, featuring Dean Blunt (Hype Williams), will take his place, although ticket holders will be offered refunds if they want them.

The Friday night Unsound line-up also features RP Boo (credited with inventing the footwork genre), SUMS (electronic producer Kangding Ray and multi-instrumentalist and composer Barry Burns), five-piece Australian electronic band Tralala Blip, dubstep pioneer Kode9, dance music producer Jlin, installation artist Florence To and performance artist Avril Stormy Unger.

Artists appearing on Saturday include Austrian musician Christian Fennesz with video and media artist Lillevan, Icelandic composer Jóhann Jóhannsson with Adelaide’s Zephyr Quartet, and techno producer Paula Temple.