The tragic singer, who died last year at the age of 27, sang jazz before making her acclaimed album 'Back To Black', reported Daily Express.
"I've got a little bit of stuff that Amy recorded with the National Youth Jazz Orchestra but really there isn't a lot. I don't know if it will come out. But her musical legacy will look after itself whatever happens," he said.
Mitch said that he is still finding it hard to come to terms with Amy's untimely death and is only just realising what an important artist she was.
"I was so busy running after Amy and telling her off and doing dad things that I didn