Long Distance & Music

Short version: I've been in a DND group for about a decade now, in person. I recently moved several states to be with my girlfriend (who is also in the dnd group).

Music is something thats always been very useful to our group in terms of immersion, being played in person, and I wondered if there was any good ways to have the music being played seamlessly between both groups of players (me and my girlfriend and the rest of the group in the other state).

I also would appreciate any advice, as a DM, for efficient ways to share maps, or other long distance DMing types. Im hesitant to use theater of the mind just due to a distrust in my own abilities.

If there are any apps, electronics or other products that would be helpful I would appreciate any links and the like, and if they're required for whatever advice you have dont hesitate to mention them. Thank you in advance.