DJ Ha is a pianist who studied with late Alexandra Vinokurov and late Aleksei Nasedkin. In his youth he was injured with a stroke, but thanks to discovering music of Leopold Godowsky, he resumed playing. 

DJ now specialises in transcribing conventional two handed repertoire into five compact fingers of left hand, just like Godowsky did.

Steve Meyer is a versatile cellist who performs regularly in a broad range of concerts throughout Sydney. He studied at the Sydney Conservatorium with Susan Blake and has appeared at the Australian Festival of Chamber Music in Townsville. As an orchestral player Steve has performed with many ensembles including the Australian Opera and Ballet Orchestra, the Sydney Opera House Orchestra and has played principal cello for The Metropolitan Orchestra, the Willoughby Symphony Orchestra and Sydney Chamber Orchestra. As a theatre performer Steve has performed in many stage productions throughout Australia including The Lion King, Les Miserable, Matilda, Ghost Dream Lover, Ladies is Black, Hamilton and Moulin Rouge.  He toured to Broadway New York with Belvoir St Theatre as solo musician in The Book of Everything. Steve has appeared as soloist with Orchestra 143, the Sydney Chamber Orchestra and premiered the cello concerto Cyan Echo by Mark Oliveiro with the Bourbaki Ensemble. In the popular music world Steve has performed with John Farnham, Olivia Newton John, Jimmy Barnes, Elaine Paige, The Church and toured Australia with Air Supply. Steve has taught Chamber Music at the Sydney Conservatorium and is currently a freelance cellist in Sydney performing with the Azumi Quartet and with pianist Catherine McKay. 


Catherine McKay was awarded an Associated Board Scholarship to study at the Royal College of Music in London with Irina Zaritskaya and then completed the Diplôme d'Études Supérieures Spécialisées under Marc Durand at the Université de Montréal.  

Her musical background is mainly in chamber music, collaborating with ensembles and as pianist of the Turnovsky Trio during its 4-year residency at the University of Waikato. She has also performed as concerto soloist, recitalist & accompanist, a highlight living for several months in Venice playing the Parekowhai piano for the NZ Pavillion at the Venice Biennale. Currently she works as accompanist at Gondwana Choirs & SCEGGS, Darlinghurst and as piano tutor at Kambala, Rose Bay. 

Based in Sydney, Louise Keast's voice has been described as a "splendid lyric soprano instrument" with the capacity to "rattle the walls". Louise debuted with the Opera Australia Chorus in the 2021 Melbourne Season production of Aida. She has since performed more than thirty operas as a chorister and became a permanent member of the Opera Australia Chorus in 2022. A particularly treasured opportunity was performing alongside her colleagues as soprano soloist in Fauré's Requiem in 2024. In February 2024 Louise performed her mainstage debut at the Sydney Opera House in the role of Papagena (The Magic Flute). Other roles and covers with Opera Australia include Freia (Das Rheingold), Spirits (Cinderella), Le Novizie (Il Trittico), First Page (Tannhäuser) and Cretan (Idomeneo). In 2025 Louise coached the role of Violetta Valéry (La Traviata) at Opera Australia, and is covering Frasquita (Carmen) in Sydney and Melbourne.
Earlier in her career, Louise performed the role of Fiordiligi in the Green Room Award nominated production of Così fan tutte (IOpera), and was a Richard Divall Emerging Artist with Melbourne Opera. Additionally, Louise has performed with Victorian Opera, Operantics, Gertrude Opera, BK Opera, National Opera, Port Fairy Spring Music Festival and the Mediterranean Opera Studio, Sicily. She has presented solo operatic recitals at the Festival Junger Künstler, Bayreuth, in Germany. 


Bradley Gilchrist completed undergraduate piano studies in Perth and post-graduate studies in piano accompaniment and piano performance in Sydney and Madrid.  Bradley is and in-demand accompanist, chamber musician and vocal coach based in Sydney.  Bradley has been a concerto soloist with the Slovakia Philharmonic and the Odessa Philharmonic Orchestras and has given numerous solo and chamber music recitals across Australia and New Zealand and in South Korea, Spain, Italy and the United Kingdom. Bradley has broadcast for the ABC Young Australia programme, ABC Classic FM, Radio National and Fine Music FM.

Bradley enjoys chamber music and has performed in a variety of ensembles, particularly in flute and piano and piano trio repertoire. As repetiteur, Bradley's early experience in ballet repertoire extended to opera and he has been repetiteur and pianist for WA Opera, Opera Australia as well as many chamber and emerging opera companies. Bradley has also worked in musical theatre and cabaret, as a pit musician, vocal coach and musical director.

Bradley leads a busy life as a freelance accompanist and vocal coach for auditions, recitals, recordings, broadcasts and concert performances. 

Bradley is very interested in participating in music making in community settings and has always directed and participated in community theatre and choral groups. He is the conductor of Canada Bay Community choir but is sought after as a guest conductor and accompanist for many other groups.

Bradley works extensively as a mentor for young vocal and instrumentalArtists. He has until very recently held the positions of Music Director of the Young Artist Programme at Pacific Opera and Music Director at Australia's oldest Music Club, Music at Manly.

Mark Quarmby graduated from the Sydney Conservatorium of Music, studying organ under Norman Johnston and piano under Marjorie Hesse. He has given recitals throughout Australia, Europe, North America, Asia and New Zealand. For over 20 years he was the Assistant Organist of St Andrew's Cathedral, Sydney, playing the organ for national live broadcasts, visits of the Queen, funerals of State governors and national memorial services. In August 2009 he was appointed Director of Music at St Stephen's, Macquarie Street.

In Europe he has played in the Cathedrals of St Paul's, London, Canterbury, Salisbury, Oxford, Winchester, Lichfield, Westminster Abbey and Notre-Dame, Paris, with recitals in Germany, Switzerland, Austria, Italy, France, and Holland. In 2009 he gave the opening recital of the American Guild of Organists Convention in Phoenix, Arizona.

He has been the President of the Organ Music Society of Sydney, has served on the committee of the Royal School of Church Music (NSW) and is currently a National Director of the Organ Historical Trust of Australia and teaches piano, organ and keyboard musicianship at the Conservatorium High School, St Patrick's College, Strathfield, and privately.