Are you just creating the same sound on 10 different level blueprint maps that the player runs between? Or is there some other interaction being used?
On level 10, you can take the output of Spawn Sound 2D and make it into a variable upon creation.
Then you should be able to use that variable to stop the music by plugging it into a Stop node.
You can then proceed to spawn another sound if you want different music. Also, you can even set that same variable off of the new sound to do things with if you don’t think you will ever use the old sound again. 