lolol

 function song()
 while true do
 note = read()
 sleep(0.1)
 end
 if note == "1" then
 print(note)
 redstone.setBundledOutput("back", colors.Cyan)
 elseif note == "2" then
 redstone.setBundledOutput("back", colors.Blue)
 elseif note == "3" then
 redstone.setBundledOutput("back", colors.Red)
 elseif note == "3" then
 redstone.setBundledOutput("back", colors.Green)
 elseif note == "4" then
 redstone.setBundledOutput("back", colors.White)
 end
 end



 while true do
 song()
 sleep(0.05)
 end