As much as I hate Discord, that's the software me and my friends use to talk and share screen. It doesn't support drawing on screen, unfortunately, but you can play music and they'll hear it if you're sharing the entire screen and not a single window.
The drawing on screen part is a bit odd, however. At that point, why aren't you just playing a regular VTT and allowing your players to move their own miniatures? I know that many VTTs are either too complicated for regular users, or too cumbersome for regular use, but I'd suggest testing a few of them until you find the right one for you.
As for me, I've tried many VTTs and the only one I liked was Tabula Sono . It's very easy to jump into and use, and all my less-tech-savvy friends were able to learn it in minutes. It also has an extensive library of (free!) miniatures, supports uploading your own content, and is system agnostic (it's just a literal virtual tabletop).
I'd fucking buy that thing if I could. Unfortunately, the only way to support the developers is to buy a subscription, and that's a no-no for me :(