Posthumous Avicii track featuring Chris Martin is being mixed

DJ Avicii's final collaboration with Coldplay's Chris Martin will soon be released months after he took his own life.

The late DJ, whose real name was Tim Berglin, produced the single "Heaven", with Martin for an album which would have been his first since 2015.

Avicii's long-time collaborator, Carl Falk, has revealed that he is working on a number of unreleased songs by the "Wake Me Up" hitmaker, including one with the Coldplay frontman.

"Yesterday was a strange and emotional day in many ways trying to finishing these songs. It's not the same producing without you by my side.

"I miss you hanging over my shoulder doubting every little thing and detail in the song. #avicii #heaven," Carl posted on Instagram alongside a picture of the mix on his computer.

Swedish site Aftonbladet had previously reported that the EDM star left behind nearly 200 tracks when he passed away.

Avicii's family had confirmed he took his life under the stress of an unrelenting industry in Muscat, Oman on April 20.