How to make a parts size change when sound is loud?

Dont know any of the code for this, please help.

Here you go, I hope this helps!

wait();

local TweenService = game:GetService("TweenService");

local soundId = 00000000;

local tweenInfo = TweenInfo.new(
	0.06,
	Enum.EasingStyle.Quad
);

local Part = Instance.new("Part");
Part.BrickColor = BrickColor.Red();
Part.Size = Vector3.new(10,10,10);
Part.Position = Vector3.new(0,20,0);
Part.Anchored = true;
Part.TopSurface = Enum.SurfaceType.Smooth;
Part.BottomSurface = Enum.SurfaceType.Smooth;
Part.Parent = workspace;

local Sound = Instance.new("Sound");
Sound.SoundId = soundId
Sound.Volume = 1;
Sound.Parent = Part;

local lastTween = nil;

repeat wait(); until (Sound.IsLoaded);

Sound:Play();

local function loudnessChanged()
	local Loudness = Sound.PlaybackLoudness;
	local Math = (10*Loudness/5)
	local Vec = Vector3.new(Math,Math,Math);
	local Tween = TweenService:Create(Part,tweenInfo,{Size = Vec}):Play();
	if (lastTween) then
		lastTween:Destroy();
	end;
	lastTween = Tween;
end;

Sound:GetPropertyChangedSignal("PlaybackLoudness"):Connect(loudnessChanged);