Matthew Oswin - Principal Répétiteur
Ōtautahi-born Matthew holds post graduate degrees from the New Zealand School of Music - Te Kōkī in performance piano, chamber music, and musicology. Having recently returned home to Aotearoa NZ from Los Angeles, he is currently based in Christchurch, where he works as a pianist, répétiteur, and accompanist, and also as a classroom teacher.
As Principal Répétiteur for Toi Toi Opera, Matthew is responsible for the effective deployment of the company’s répétiteur team across each season’s productions.
Cheuky Chan - Adjunct Principal Répétiteur (UK)
Born in Hong Kong and raised in Christchurch, Cheuky is currently based in Essex, UK, where she is active as a freelance accompanist, teacher, and répétiteur.
A performance piano graduate of the University of Canterbury, Cheuky is a former Freemasons Dame Malvina Major New Zealand Opera Emerging Artist répétiteur, a former New Zealand Opera School répétiteur, and her postgraduate study and work in music has taken her to Germany, Wales, and the United States.
Anria Breytenbach - Répétiteur
South African born Anria is a freelance pianist, répétiteur, accompanist, and a private piano and music theory teacher based in Christchurch.
Anria joined Toi Toi Opera in 2025 on a contract basis as cover répétiteur, and having worked on several of the company’s 2025 and 2026 season productions, she was invited to join the permanent répétiteur staff in August 2026.