[1] Flynn conducted for many prominent orchestras and festivals worldwide, including the BBC, the Paris Opera, the Spoleto and Varna International Festivals, the Finnish National Opera, Holland Simfonia and the orchestras of New Zealand, Rio de Janeiro, Cologne, Louisville, and San Diego.
He won acclaim as musical director for Hair, Jesus Christ Superstar, and later Joseph And The Amazing Technicolour Dreamcoat.
He composed scores for Australian films such as Caddie, Mad Dog Morgan and Sunday Too Far Away, and the rock operas Ned Kelly, Lasseter and Dorothy Hewett's Joan.
He conducted for Kiri Te Kanawa's film debut in New Zealand (Don't Let It Get You)[8] and for Marjorie Lawrence's last commercial recording "Waltzing Matilda", with the Sydney Symphony Orchestra.
[citation needed] There are a considerable number of recorded concert performances, mostly stemming from radio broadcasts, none of which are commercially available.