An anthropologist was researching culture in a far off land. One night as he was about to go to sleep, he heard some loud drumming coming from a nearby valley. He hoped it would stop, but it carried on all night and into the next day, reverberating through the air. He didn't get any sleep that night. The drumming continued solidly all of the following night, and the next day too. The anthropologist was beginning to think he would never be able to get any sleep at all. After about a week of solid drumming, he was near the end of his tether.
Then, suddenly, the drumming stopped. He was overjoyed! "At last!", he said. "Finally that horrendous racket has finished!"
A local man noticed that the anthropologist was celebrating, and looked at him with a sad expression that showed rueful experience. He said to him:
"When drum solo finish, bass solo begin."