Catherine Barnett studied Violoncello externally at the Victorian College of the Arts in Melbourne with Miriam Morris. She graduated from La Trobe University, Melbourne in 1995 with a Bachelor of Applied Science (Speech Pathology).  She was a member of the Melbourne Youth Orchestra from 1991-1992 and the Chamber Strings of Melbourne from 1992-1994, before moving to NSW in 1995, where she performed with the SBS Radio and Television Youth Orchestra in Sydney from 1996-1998.

Based in Oxford and Wells in England (1999-2001) Catherine gained the Associate Diploma in Violoncello performance from Trinity College, London in 2000 and the Licentiate Diploma in Violoncello Performance from the Guildhall School of Music and Drama, London in 2001.

After returning to Australia in 2002, Catherine has done freelance performing with a variety of orchestral and chamber ensembles, including the Wollongong Symphony Orchestra and Steel City Strings.

Catherine now teaches cello privately in Bowral, NSW. She has been a member of the Macarthur String Quartet since 2002.