s = Instance.new("Sound",Workspace.tyridge77);
s.SoundId = "http://roblox.com/asset/?ID=277571097" s.Volume = .5; game.ContentProvider:preload(s.SoundId); wait(5); s:Play();
function clamp(v,mi,ma)
if v<mi then return mi elseif v>ma then return ma else return v end
end
local rs = game:GetService("RunService").RenderStepped;

lastdark = 5;
darkrandom = 5;
while true do
   local time = Workspace.DistributedGameTime;
   rs:wait();
   if time-lastdark >= darkrandom then
   darkrandom = math.random(15,25);
   lastdark = time;
   local x = math.random(50,80);
   for i = 100,x,-1 do
     s.Pitch = i/100;
     wait();
   end
   wait(math.random(2,4))
   for i = x,100,1 do
     s.Pitch = i/100;
     wait();
   end
   end
end