How could I make sound play during a player entered cut scene?

I am using the CloneTrooper1019 cutscene creator.

I don't use his cut-scene creator, but you could simple used a Player Added Event.

a = game.Lighting.Sound
game.Players.PlayerAdded:connect(function(plr)
	repeat wait() until plr.PlayerGui
	a:clone().Parent = plr.PlayerGui
end)