This is what we found on Wikipedia regarding the Unsound Adelaide:

Illuminate Adelaide is an annual winter event held each July in Adelaide, South Australia. It includes free and ticketed events presented by local, national, and international artists and companies, encompassing "art, light, music, and technology".

The first event was announced by the Government of South Australia in August 2020 and was planned for July in the following year, intending to showcase various types of light shows, art installations, immersive technology, music, performance arts, and to present ideas for public debate. The Co-Founders and Creative Directors are Rachael Azzopardi and Lee Cumberlidge.