How to make different sound environments?

In my game, there are three areas, and I'd like to make it so when you're in one area, certain music plays, and when you're in another area, different music plays. How do I do this?

local areas = {
	[1]= {
		Name = "Town",
		Center = Vector3.new(0,0,0),
		Music = "13333337"
	},
	[2] = {
		Name = "Toilet",
		Center = Vector3.new(50,0,0),
		Music = "13333337"
	},
	[3] = {
		Name = "Wilderness",
		Center = Vector3.new(0,0,50),
		Music = "13333337"
	}
}

local me = game.Players.LocalPlayer
local sound = Instance.new("Sound")
local currentArea = nil

local function getClosestArea()

	local closestArea = 1
	local minimumDistance = me:DistanceFromCharacter(area[1])
	

	for i,area in pairs (areas) do
		local distance = me:DistanceFromCharacter(area.Center)
		if distance < minimumDistance then
			minimumDistance = distance
			closestArea = i
		end
	end

	return closestArea
end

while wait(1) do
	local closestArea = getClosestsArea()

	areaData = areas[closestArea]

	if currentArea ~= areaData.Name then
		currentArea = areaData.Name
		sound:Stop()
		sound.SoundId = "rbxassetid://"..areaData.Music
		sound:Play()
	end
end