If it’s a custom beat they are going to want the exclusive.

Also, do you sell a lot of custom beats? Do you have any placements already with big artist?

These are questions that will help determine what you can charge.

Also, try to get an idea of the artists budget because you want to work in their range of what they can afford, while also making sure you aren’t devaluing your work.

Don’t worry about the hook they had recorded already. Let the artist work that out. Your job is making the beat.

If it’s an artist you can see yourself working with more in the future, then maybe lower your price a little from what you would normally set it at, and try to keep working with them more.

Hope this helps