I would say it's time to sit down and find out what's behind her anger. She may feel your neglecting the family, her or things around the house. Maybe she's afraid if you make this album it will do so well you won't want her or be around for her. Bottom line: Take her to dinner or do something she likes and get her to open up to you about this problem. If you can find common ground she will be happy and you will be able to put a better album together.

Well that's how i'd handle it anyway.