Beach Boys' reclusive founder Brian Wilson made a private concert appearance in San Francisco before a group that included political cartoonist Garry Trudeau as the two joined in an AIDS fund-raising effort. Looking uncomfortable in a dark suit and tie, a nervous Wilson played piano and sang Wednesday at the private reception. A few dozen patrons paid at least $125 each for the 15-minute performance. "I enjoyed it," Wilson said after the performance. "I had to close my eyes. That's the only way I can really feel my music, closing my eyes." Wilson had said before the show that he was "scared to death." Trudeau, creator of the comic strip "Doonesbury," sat cross-legged on the floor during the concert.