How Can I add music to my cutscene? Then Have a different song play whilse your playing the game?

On my game, I have a cutscene, and I would like to have a peice of music for the cut scene and cut scene only, then once the cut scene is over there is a different song playing, at the moment, in my work space, I have a a sound object in my workspace of which i have a id hooked up to it, and in my StarterGui I have a scrip that says

Game.Workspace.Sound:play()

I'm sure I need to add more, I am VERY new at scripting, my apoligies, thank you for your time. Cutscene script

repeat wait () until game.Workspace.CurrentCamera ~= nil

local c = game.Workspace.CurrentCamera
local data = LoadLibrary("RbxUtility").DecodeJSON(script.CutsceneData.Value)
local rs = game:GetService("RunService").RenderStepped

function tweenCam(c1,f1,time,fov,roll)
	local c0,f0,fv0,r0,frames = c.CoordinateFrame,c.Focus,c.FieldOfView,c:GetRoll(),time/0.015
	for i = 1,frames do
		c.CameraType = "Scriptable"
		c.CoordinateFrame = CFrame.new(c0.p:lerp(c1.p,i/frames),f0.p:lerp(f1.p,i/frames))
		c.FieldOfView = (fv0+(fov-fv0)*(i*(1/frames)))
		c:SetRoll(r0+(roll-r0)*(i*(1/frames)))
		rs:wait()
	end
end

print("Running")
c.CameraSubject = nil	
c.CameraType = "Scriptable"
c.CoordinateFrame = CFrame.new(unpack(data[1].c1))
c.Focus = CFrame.new(unpack(data[1].f1))
c.FieldOfView = data[1].FOV
c:SetRoll(data[1].Roll)
if script:findFirstChild("SkipCutsceneGuiValue") then
	local gui = script.SkipCutsceneGui:clone()
	gui.Parent = game.Players.LocalPlayer.PlayerGui
	gui.Cutscene.Value = script
	gui.Main.Debug.Disabled = false
	script.SkipCutsceneGuiValue.Value = gui
end
for i = 2,#data do
	tweenCam(CFrame.new(unpack(data[i].c1)),CFrame.new(unpack(data[i].f1)),data[i].step,data[i].FOV,data[i].Roll)
end
c.CameraSubject = game.Players.LocalPlayer.Character.Humanoid	
c.CameraType = "Custom"
c.FieldOfView = 70
if script:findFirstChild("SkipCutsceneGuiValue") then
	if script.SkipCutsceneGuiValue.Value ~= nil then
		script.SkipCutsceneGuiValue.Value:Destroy()
	end
end
script:Destroy()