William Barton & Australian String Quartet Square Circles

William Barton is a composer, producer, multi-instrumentalist, and vocalist, renowned as one of Australia’s foremost didgeridoo players and composers. With over two decades of experience, he has built an exceptional reputation in the classical music world, performing with prestigious ensembles such as the London and Berlin Philharmonic Orchestras. His career includes landmark events like Commonwealth Day 2019 at Westminster Abbey, performances at Anzac Cove, and the opening ceremony of the Beijing Olympics. His accolades include winning Best Original Score at the 2018 Sydney Theatre Awards for a Mainstage Production, as well as Best Classical Album with ARIA for Birdsong at Dusk in 2012. Rooted in his Kalkadunga heritage, William's extraordinary musicianship and cultural insight have broadened the boundaries of the didgeridoo, elevating both its sound and the stories it carries.

Australian violist Stephen King is a chamber musician and creative who performed with the Australian String Quartet from 2012 to 2021. His career has taken him to renowned venues and festivals worldwide, and he has been instrumental in developing projects with First Nations artists, premiering new Australian works, and collaborating across art forms.

Prior to joining the ASQ, Stephen was a member of the Australian Chamber Orchestra (ACO) for nine years, where he played a key role in building the Orchestra’s education and emerging artist programs.

Originally from Canberra, Stephen switched from violin to viola after nearly completing an architecture degree in Brisbane. He studied in the USA with James Dunham (Cleveland Quartet), Kathy Murdock (Mendelssohn Quartet), and Michael Tree (Guarneri Quartet), and earned a Doctorate in Chamber Music from the University of Maryland. Stephen was also the violist of the Coolidge String Quartet and served as Associate Principal Viola of the Boston Philharmonic Orchestra.

In Australia, he has guest-performed as principal violist with the Melbourne and Tasmanian Symphony Orchestras. He currently teaches at the University of Adelaide’s Elder Conservatorium of Music and regularly tutors at National Music Camps for the Australian Youth Orchestra.

Mark Patterson is an experienced producer with a diverse portfolio spanning feature films, documentaries, and one-off programs across Australia, China, India, France, and Hawaii. He has had a long-standing collaboration with director Paul Cox, producing several of his films, including Force of Destiny (2015), Kalaupapa Heaven (2007), The Remarkable Mr. Kaye (2006), Human Touch (2004), and the box office and festival hit Innocence (2000).

Mark also produced Race to London (2012), a six-part documentary series for ABC1, and the first Australian/Chinese co-production, Dragon Pearl (2010). Recently, he served as a producer on Cargo (2017), starring Martin Freeman, and is the Executive Producer of Soundstream, a new music organization.

Previously, Mark was the Manager of Film Development at the South Australian Film Corporation and Film South (1990-1994), and Executive Producer of Government Documentaries (1995).

Anton Andreacchio is the founder of Jumpgate, a leader in immersive reality technology. Since its inception in 2014, Jumpgate has produced the first VR symphony orchestra concert in 2015 and collaborated with organizations like Closer Productions, Sydney Dance Company, and the Australian String Quartet. Notable projects include Summation of Force (2017), a VR adaptation featured at Sundance, and Living Rocks (2019) at the Venice Biennale.

Anton, with a background in mathematics, has also founded Convergen, Artisan Post Group, and Farsite. He chairs the Adelaide Film Festival and serves on the boards of the Adelaide Symphony Orchestra, ACE Open, and the Entrepreneurship Advisory Board.