I have been thinking about your situation for a while now.
My view:
Time will give you an answer.
I have a friend whose girlfriend used to prostitute on the side to pay bills while she went to university. She told him that, to get it out of the way, and not him have to find out by chance later, bad blood etc.
He had a hard time to swallow that, but he decided he loved her and as she stopped the prostituting after she got a nice job after university, they are happy now.
You should talk about her perspective for the future. Will she realistically be stopping that particular job some point in the future? Can you live with that?
Maybe if you keep dating her and your relationship grows, you can take a part of her financial burden from her if she moves in sometime in the future, so she can go easier on her prostituting job. Or you can help her find a job that replaces the prostituting and you are both happy. You sure have quite a bot contacts in the music industry, so why not sart asking around if a smart woman who is not too hard on the eyes could get a job somewhere? Or she could maybe work along you?
As Arethe Franklin sings: Think!
Good Luck, friend, Love will always find a way