Winehouse was found dead in her Camden, North London flat on Saturday at the age of 27. A cause of death is yet to be determined.
Remi, a long-time producer of Winehouse's music, told New York radio station Power 105.1 FM's Kim Kane that the follow-up to Winehouse's 2007 LP Back to Black was very much a work in progress, and that her estate has yet to approve the release of the material.
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"We were working on it; it's not a complete album. We had a lot of things going, there are recordings, but first things first, I think. We're trying to focus on what's at hand and what her family wants to do. So those reports [that there is finished material] are false," Remi explained.
Remi went on to reveal some of Winehouse's creative processes, praising her songwriting and vocal talents as well as her ability to improvise while recording.
"To put it all in a nutshell, Amy loved to sing, to write... that ability never left her. She was very good at channelling her emotions into lyrics, and then being able to sing them. She was in a place to go forward and make it happen... The way that Amy and I always created was she would write and we would toss ideas around," he recalled.
"Amy had strong opinions on everything... She was very opinionated about what she liked. At the end, she was a real person. She had a huge heart."
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Watch the Amy Winehouse 'Back To Black' music video below: