An explorer was travelling through the wilds of deepest, darkest Africa with a few native porters and guides. Far off in the distance, he hears drums pounding. Well, the explorer is naturally concerned, so he consults his guides. They reassure him, "There is nothing to worry about. When the drums stop, it's time to worry." This didn't make him feel much better, but he kept going. Gradually the drums got louder and he asked his guide again. "When the drums stop, it's time to worry" was the response he got again. Eventually the drums got so loud, the explorer would have sworn that they were right next to him. Then all of a sudden, they stopped. With a trembling voice, he asked his guide what would happen now. With an equally trembling voice, the guide answered, "oboe solo".