An unheard cassette recording of Prince performing at his piano in 1983 will be released with the name, Piano & A Microphone on Sept. 21.

The project will consist of nine-tracks, with a length of 35-minutes and it will be straight from the Prince Estate in coordination with Warner Bros. Records. It is currently available now to pre-order on CD, LP, deluxe CD+ LP, digital release and pre-save for streaming.

“This raw, intimate recording, which took place at the start of Prince’s career right before he achieved international stardom, is similar in format to the Piano & A Microphone Tour that he ended his career with in 2016,” Prince Estate entertainment adviser Troy Carter said in a statement.

The album cover features a rare image of Prince backstage during the 1999 tour, taken by Allen Beaulieu, who worked closely with Prince from 1979-1984.