How to stop the current background music and play the custom music id?

my local script inside a TextButton

script.Parent.MouseButton1Click:Connect(function()
	game.Soundscape.PlaCusMus.SoundId = "rbxassetid://".. script.Parent.Parent.MuIDHe.Text
	StopPlaying."rbxassetid://1298214499"
end)

-- PlaCusMus is a sound in soundscape
-- MuIDHe is a TextBox that you enter the id to play music