It traces its origins to 1962 and a small informal gathering of external players with the Braddon Catholic Girls High School Orchestra, with the orchestra conducted by Brigidine nun, Mother Winifred.
[3] In 1985, the CYO was named best symphony orchestra in the International Youth and Music Festival, in Vienna.
[5] With conductor Leonard Weiss, the CYO re-established a regular subscription season at Llewellyn Hall.
As part of the CYO 50th anniversary season in 2017, the orchestra performed with The Idea of North and Australian trumpeter James Morrison.
Sharpe intimated his ambition to build the CYO back up to a full strength orchestra of 60-70 players.