Musicians remember 'titan' Harry M Miller

Entertainment promoter Harry M Miller has died aged 84 after a battle with dementia, his agency has confirmed.

Australian entertainment promoter Harry M Miller has died at the at of 84. (AAP)

Australian entertainers have begun marking the life of "industry titan" Harry M Miller was after the music promoter died aged 84.

The "visionary" entrepreneur died peacefully in Sydney on Wednesday surrounded by family, the agency he founded said in a statement on Thursday.

Singer and TV host David Campbell labelled the New Zealand-born entrepreneur "a titan of our industry".

Sydney. 4th September, 2000. What Makes A Champion forum at The Great Hall, Sydney University. Marketing and personal management entrepreneur Harry M. Miller. Source: AAP

"He broke new ground with Rocky Horror and JCS (Jesus Christ Superstar) in the 70s. Made stars out of Marcia (Hines), Jon English and so many more. RIP," Campbell tweeted on Thursday.

Brendan Maclean, who starred alongside Hines in the original cabaret Velvet in 2015, said: "even when his body didn't let him walk or talk much, he STILL got out to the theatre."

Actor and disability advocate Quentin Kenihan said Miller was a great agent, manager and businessman.

"Most of all (he was) a great person and father. I always enjoyed our conversations," he said.

In his autobiography, Miller detailed his funeral plans - or lack thereof.

"There will be no funeral service as such, but a memorial, preferably at the Capitol Theatre in Sydney," he said.