Mark Moffatt has passed away at the age of 74.

Described as 'an unsung hero of Australian music', the Queensland-born producer died on Friday in Nashville, Tennessee, following a battle with pancreatic cancer.

Well-known in the music industry as a talented guitarist and producer, Moffatt worked with some of Australia’s biggest pop and rock stars.

Among his credits are The Saints’ hits "(I'm) Stranded" and "No Time", as well as Yothu Yindi's smash single "Treaty".

“This was life-changing, really,” Moffatt told The Music about working on the track.

“I spent time with the band and learned about their tribal beliefs. The didge player, Milkay, was unbelievable. He was like the master,” he explained.

“I remember when ‘Treaty’ was out, and we were still working on the album. I was with the band at Tullamarine airport, and these white school kids came running up to the Aboriginal members to ask for their autographs.

“That was a very special moment.”

In addition, he produced Slim Dusty’s "Fiddler Man" and Tim Finn's "Fraction Too Much Friction".

Moffatt relocated to Nashville in 1996, where he forged a successful career in the USA, working with artists such as Keith Urban and Richard Clapton.

During his time in Nashville, he was honoured with the CMA Global Achievement Award.

According to The Music, Moffatt has “more APRA Top 30 songs of all time than any other producer,” and worked with 15 ARIA Hall of Fame nominees.

Among those paying tribute was Australian country music star Troy Cassar-Daley.

“I am saddened to hear of the passing of Mark Moffatt this morning. He hailed from around Maryborough, Queensland, and did so much for so many as a producer, guitar player, and mentor,” he wrote in a post on X (formerly Twitter).

“I first met him in Sydney; he had just produced one of my favourite Shane Howard records, The River,” Troy began.

“He ended up in Nashville doing wonderful work bridging the gap between the Australian and American country music industries, bringing people together on so many levels,” he continued.

“We always caught up when I went to Nashville, and I’ll miss his stories and wonderful guitar playing.

“We wrote a song called ‘Long Way Home’ together, which became a title track years ago.

“Just another good human gone too soon. Such a huge array of artists that he has produced and helped will miss you in Nashville, Moff.”

Moffatt is survived by his wife, Lindsey, his son Geordie, stepdaughter Dana, and two granddaughters.