An Australian producer and DJ who has toured with Avicii said the Swedish-born musician's death on Friday was a "shock" and a major loss to the industry.

Will Sparks, who supported Avicii  during his shows in Sydney and Perth in 2014, said the news of the popular 28-year-old producer's death in Oman was "a tragedy".

"It's a bit of a shock to be honest," Sparks said.

"We've lost one of the biggest innovators and producers. We wouldn't have done a lot of what we've done in music without him."

Avicii, who was born Tim Bergling, was found dead in Muscat on Friday afternoon local time, his publicist Diana Baron said.