There's almost certainly even more unreleased material.
Incidentally, apparently she was a great businesswoman. She said she had observed men all her life and learned business, and she never let herself be taken advantage of, and never compromised.
She said Elvis wanted to sing I Will Always Love you but she refused him cold because she wouldn't give up the publishing rights.
She said her songs were like her children, and in fact she protect them and herself.
I didn't realize I was such a big fan time back. I was just a fan. But I came to be big fan.
Loved her personality, her music, her beauty, her humanity, and rare for me there wasn't anything I didn't like about her.
RIP