WebDisc

MOD PACK REQUIRED

https://www.curseforge.com/minecraft/modpacks/heavybullet

WebDisc - An improved version of similar mods that allows you to play music in-game via a link.
It now works with:

•  Sophisticated Backpacks
•  VS2
•  and automatically rewinds when the music goes out of sync between players!

Made for the Heavy Bullet modpack, requires a core mod