Principal Artists



A founding member of Topology, John studied saxophone at the Queensland Conservatorium Of Music, graduating with a Diploma in Jazz in 1987. He has been performing and teaching for over 30 years, has toured Australia, Europe, the US, Canada, India, Singapore and Indonesia, released 15 albums by Australian and international composers, and his compositions have been played on radio and television worldwide. Babbage is a sought-after cross art form composer with commissions for works such as R&J (Expressions Dance Company), Argus (Dead Puppet Society) and Ocean’s Skin (Heidi Duckler Dance Theatre, USA). He has recorded and performed with the above groups as well as Terry Riley (USA), the Brodsky Quartet (UK), Abhinaya Theatre Company (India), Kate Miller-Heidke, the Kransky Sisters, Christine Anu, Trichotomy, TaikOz, William Barton, Grant Collins and many more. Babbage is also a driving force in Topology’s Top Up education and community engagement program and is actively sought after by teachers around the country to deliver improvisation and composition workshops. His work for Top Up has brought him to numerous communities Australia-wide.





Robert is a prolific composer, bassist, lecturer and founder and artistic director of Topology. Davidson studied composition with Terry Riley in California before completing a composition PhD at the University of Queensland. He previously studied South Indian vocal music in Kerala, India. Davidson’s compositions are regularly performed, recorded and broadcast around the world, in venues including Sydney’s Opera House and London’s Barbican. All of Australia’s professional orchestras and many leading soloists and ensembles have commissioned and performed his works. With Topology he has released 14 albums and a DVD, and has directed and participated in numerous artistic collaborations.






Bernard studied viola at the Queensland Conservatorium of Music with John Curro, and at Michigan State University with John Graham and Robert Dan. He has participated in masterclasses with Kim Kashkashian, the Alban Berg Quartet and Kronos Quartet. While in the US, he played with the Arlington Quartet, with whom he toured the UK. Violist in the Queensland Philharmonic Orchestra from 1994-2000, Bernard is currently a member of the Queensland Symphony Orchestra, with whom he has performed as soloist in concertos by Hindemith and Bach. He has performed as a guest with the Australian String Quartet, and the Australian Chamber Orchestra. He is also a founding member of Topology and has performed extensively with them, both throughout Australia and internationally. His compositions and arrangements have been performed by Topology, the Australian Youth Orchestra, and a wide variety of chamber ensembles. In 2019, his String Quartet, Enkindling, was premiered in the QSO’s Chamber series, and he is currently writing a new orchestral piece for the QSO to be performed in 2021.






Highly-respected performance artist, session musician, and music educator, Christa is as comfortable lending her talents to the orchestra pit as she is in character wardrobe, playing on stage with Led Zeppelin or playing solo violin and strolling the stage with Expressions Dance Company. One of Topology’s founders, a steadying influence and strong driving force towards the shared common goal, Christa has helped steer Topology from the start, emerging as Creative and Education Director. When she’s not playing with Topology, she performs a wide range of chamber music (she and Therese are two thirds of the Muses Trio with cellist Louise King), her long-held passion. She also plays orchestral music with the Queensland Symphony Orchestra, gigs with bands and teaches violin at Brisbane Girls Grammar School, in her private studio and as a guest at various education institutions. Christa studied at the University of Queensland (BMus Hon 1991) with Elizabeth Morgan, in London (1991 – 1993) with Emanuel Herwitz of the Melos Ensemble and at the Queensland Conservatorium of Music with Carmel Kaine, obtaining her Master of Music in 1996. In London, she played with the Olyver Gypsy Ensemble.





Therese became a part of Topology 12 years ago. Besides her work with Topology, Therese is in demand as both performer and pedagogue. She has performed with Topology since 2009, including collaborations with the Brodsky String Quartet, drummer Grant Collins, and Heidi Duckler Dance Theatre (USA). She has performed at the Brisbane Festival, Queensland Music Festival, Singapore Arts Festival, Salihara Arts Festival (Indonesia), Darwin Festival, Lincoln Center (NYC), and on tour in the Netherlands and Belgium with the Kransky Sisters. She also adores performing chamber music, bringing both traditional and lesser-known repertoire to the stage, and playing with the Muses Trio with Christa is close to her heart. Therese was the first Australian to become a Taubman Instructor, the focus of her PhD, and is a Master level teacher and Associate Faculty with the Golandsky Institute (USA). She works with pianists from across Australia and internationally, and regularly presents workshops, teacher-training sessions and lectures. She has been a Keynote Speaker for many national conferences: Australasian Piano Pedagogy Conference, Western Australia Pedagogy Convention, and ANZCA’s National Conference. She continues her own studies regularly with Edna Golandsky and John Bloomfield (USA) via Skype.