The drop comes a decade after music historian Alec Palao found a 12-inch acetate marked "Davie Jones" while cataloguing late producer Shel Talmy's archive. The disc contained five unreleased tracks from 1965, recorded before Bowie adopted his stage name, with another five songs surfacing during Palao's later research.
The material forms a new posthumous collection titled The Shel Talmy Recordings.
Palao says the recordings - which include You've Got A Habit Of Leaving and Baby Loves That Way, show the legendary star at his most direct.
"They are probably the most visceral, raw you'll ever hear the man."
Paolo added they are "a fascinating window into London in 1965 and its possibilities."
The tracks were originally kept by Talmy, who produced artists including The Kinks and The Who and stored Bowie's early sessions alongside other work. The release includes demos, remastered material and 10 previously unheard songs from Bowie's teenage years performing in London clubs.
Dana Gillespie, an early collaborator who met Bowie at 17, says the tracks capture him experimenting: "They're songs that don't really sound like David but it's him trying to find his voice. He was experimenting.
"He was very driven… He turned to me and said: 'Whatever it takes, I want to get out of here.'"
Bowie died in 2016, aged 69, after a private cancer battle. His final album Blackstar was released two days before his death.
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