Though Amy Winehouse only released two albums during her brief career, the singer's former spokesperson, Chris Goodman, claims the troubled star left behind several unreleased tracks that could be put together for a posthumous album.
Winehouse was found dead in her London home on July 23 at the age of 27. An autopsy failed to determine the cause of the singer's death. Police are awaiting the results of toxicology tests, which are expected to take two to four weeks.
Goodman told the Associated Press on Thursday that Winehouse left behind "plenty" of material, however, no discussions have been held yet about releasing any of it.
It is also unclear if tracks are finished. Winehouse had been in and out of recording studios over the past few years, attempting to work on a follow up to her 2003 breakout album "Back to Black." In July 2010 she said a new album would appear within six months, but it was never finished.
Producer Salaam Remi, who worked on both Winehouse albums - "Frank" and "Back to Black" - and was involved with her new material, reportedly told DJ Kim Kane of New York's Power 105.1 radio station that there were not large amounts of finished material, and Winehouse's estate had yet to approve the release of anything.
"We had a lot of things going, there are recordings, but first things first, I think," he said according to the Associated Press. "We're trying to focus on what's at hand and what her family wants to do."
Sales of Winehouse's music have soared since her death. In the U.S., digital sales of her tracks have risen by 2,000 percent in the past week, according to Nielsen Soundscan, and "Back to Black" is set to re-enter the Billboard album chart at No. 9.
More than 100 people attended the service at Edgwarebury Cemetery in north London. Mark Ronson, who produced Winehouse's Grammy-winning single "Rehab" and her 2006 album "Back To Black," was also among them. (see photos from Amy Winehouse's funeral).
The Jewish service was led by a rabbi and included prayers in English and Hebrew and reminiscences from Winehouse's father, Mitch Winehouse, who ended his eulogy with the words "Goodnight, my angel, sleep tight. Mummy and Daddy love you ever so much."
The service was being followed by cremation at London's Golders Green Crematorium before the family begins Shiva, a Jewish traditional period of mourning.