[Lib] I believe you're thinking of Saint-Saens' Dans Macabre (doodoo, doodoo, doodoo, doodoo....) and see my second answer to Tuj, which should have narrowed it down a bit for you.
What a great game this is! Once we've calmed down and are focusing on just one at a time. Shame Roobarb and Custard has already gone, because that it the greatest theme tune of all time.