Hello,

I'm scripting a music player with blueprints in Unreal Engine. I have a UI and I want to call the Play Music, Go To Next Song, and Go To Previous Song functions from it. How would I do that?

Blueprint scripting is not my forte but have you read the online documentation for UMG?  Take a look at sections 3 and 4 of the below:

https://docs.unrealengine.com/en-us/Engine/UMG/QuickStart