Why won't this sound play?

JUST FOUND OUT THAT MY VOLUME WAS MUTED. xP

This was working yesterday and it stopped working.

Game:GetService("ContentProvider"):Preload("http://www.roblox.com/asset/?id=138089845")
script.Parent.Visible = true
script.Parent.Text = "Loading"
wait(1)
script.Parent.Text = "Loading 5%"
wait(0.15)
script.Parent.Text = "Loading 7%"
wait(0.15)
script.Parent.Text = "Loading 9%"
wait(0.15)
script.Parent.Text = "Loading 20%"
wait(0.15)
script.Parent.Text = "Loading 35%"
wait(0.15)
script.Parent.Text = "Loading 34%"
wait(0.15)
script.Parent.Text = "Loading 35%"
wait(0.15)
script.Parent.Text = "Loading 37%"
wait(0.15)
script.Parent.Text = "Loading 40%"
wait(0.15)
script.Parent.Text = "Loading 43%"
wait(0.15)
script.Parent.Text = "Loading 56%"
wait(0.15)
script.Parent.Text = "Loading 60%"
wait(0.15)
script.Parent.Text = "Loading 60%"
wait(0.15)
script.Parent.Text = "Loading 74%"
wait(0.15)
script.Parent.Text = "Loading 80%"
wait(0.15)
script.Parent.Text = "Loading 83%"
wait(0.15)
script.Parent.Text = "Loading 86%"
wait(0.15)
script.Parent.Text = "Loading 97%"
wait(1)
script.Parent.Text = "Loaded 100%"
wait(0.05)
script.Parent.Transparency = 0.05
wait(0.05)
script.Parent.Transparency = 0.10
wait(0.05)
script.Parent.Transparency = 0.15
wait(0.05)
script.Parent.Transparency = 0.20
wait(0.05)
script.Parent.Transparency = 0.25
wait(0.05)
script.Parent.Transparency = 0.30
wait(0.05)
script.Parent.Transparency = 0.35
wait(0.05)
script.Parent.Transparency = 0.40
wait(0.05)
script.Parent.Transparency = 0.45
wait(0.05)
script.Parent.Transparency = 0.50
wait(0.05)
script.Parent.Transparency = 0.55
wait(0.05)
script.Parent.Transparency = 0.60
wait(0.05)
script.Parent.Transparency = 0.65
wait(0.05)
script.Parent.Transparency = 0.70
wait(0.05)
script.Parent.Transparency = 0.75
wait(0.05)
script.Parent.Transparency = 0.80
wait(0.05)
script.Parent.Transparency = 0.85
wait(0.05)
script.Parent.Transparency = 0.90
wait(0.05)
script.Parent.Transparency = 0.95
wait(0.05)
script.Parent.Transparency = 1.00
wait(1)
script.Parent.Parent.Song:Play()

I have no output or anything. It worked one day and didn't the other.

First of all WOAH on the loading and the transparency animation.... Please try to use for loops for that!!

Another thing is that this question is a bit vague, could you provide a screenshot of the location of the sounds and gui objects? Thanks I'll edit once you reply with info!