Problems with Sounds any help?

Okay so me and a friend were going to make a script that cycles through music in a game and searches for any models called "Screen" in workspace and a block called "-" inside it which has a surfacegui and textlables. Here is a picture of how it is laid out: Picture

Okay so what we're having trouble with is getting it to work ingame. It works perfectly in studio, but as soon as we test ingame, it just loops the 1st song and doesn't move on, is this a fault on ROBLOX's side or are we doing something wrong in the script? If so please could you point it out. Here is the script:

Music = {}

function AddMusic(Name, id)
    table.insert(Music, {Title=Name,ID=id});    
end

Musica = true

AddMusic("Uptown Funk",210232032)
AddMusic("Blank Space",200481071)
AddMusic("Centuries",181547615)
AddMusic("Sugar",212017208)
AddMusic("Like I Can Remix",195112281)
AddMusic("Gravity Falls - 8 bit",156026545)
AddMusic("Elector Monster",169875502)

coroutine.resume(coroutine.create(function()
	while Musica do
		Musica = false
		for i,v in pairs(Music) do
			local Sound = Instance.new("Sound",workspace)
			Sound.Archivable = true
			Sound.SoundId = "http://www.roblox.com/asset/?id="..v.ID
			for _,Screen in pairs(workspace:children()) do
				if Screen:IsA("Model") and Screen.Name == "Screen" and Screen:findFirstChild("-") then
					Screen["-"].SurfaceGui.Frame.Cur.Text = "Current Song: "..v.Title
					if Music[i+1] then
						Screen["-"].SurfaceGui.Frame.Nex.Text = "Next Song: "..Music[i+1].Title
					else
						Screen["-"].SurfaceGui.Frame.Nex.Text = "Next Song: "..Music[1].Title
					end
				end
			end
			Sound.Volume = 1
			Sound.Looped = true
			wait()
			Sound:Play()
			Sound.DidLoop:wait()
			Sound:Stop()
			Sound:Destroy()
		end
		Musica = true
		wait()
	end
end))

Yes I know there is no point in it being inside a coroutine, but I added it just in case I wanted to add anything else into the script later, or if my friend wanted it. It's the exact same without the coroutine.

I tried doing this a while back, sadly there is no easy way of doing such a thing. The only way you can get a song to change after it's finished/looped is to use it locally inside a player. ROBLOX can't comprehend this Server-Side because players may start playing the song at different moments.

So my answer is, it is partially ROBLOX's fault, but you can possibly run the whole thing locally if you wanted, and it would work.