The Revival Meeting

There was a revival meeting held by a black Baptist church in which everybody who was anybody attended. The preacher delivered his opening remarks about the goodness of God and then opened his hymn book. "Brothers, turn to hymn 32." The piano player looked at the preacher. "But Brother Preacher, I don't know that song," he said.
The preacher turned to the congregation a second time. "Brothers, turn to hymn number 13." Once again the piano player turned to the preacher. "But Brother Preacher, I don't know that one either."
"Well, let us turn to hymn number 54." And again the piano player turned to the preacher. "Brother Preacher, I'm afraid I don't know that song." From the back of the hall came a yell: "Throw the mother fucker out!"
The preacher was appalled. He was absolutely shocked. "Now brothers, we can't allow that kind of talk in the house of our Lord! I want the person who called Brother Piano Player a mother fucker to stand and confess his sin before God and this congregation! " Nobody stirred. Once again the preacher spoke. "Then I want the person sitting next to the person who called Brother Piano Player a mother fucker to stand." Again no one stirred, and in desperation the preacher said, "I want the person sitting next to the person sitting next to the person who called Brother Piano Player a mother fucker to stand." But nobody moved.
Presently a man in the back of the hall stood, "Brother Preacher, now I'm not the mother fucker who called Brother Piano Player a mother fucker, but what I want to know is, who's the mother fucker that called him a piano player?"