MARGARET Leng Tan took a red rose from the top of the piano and put it between her lips.

“This is a tango,” she said.

The audience laughed. Her left hand then struck the keys of the large piano, while her right hand played the keys of a 51-centimeter-high toy piano. And the composition, An American in Buenos Aires by American composer Toby Twining, flowed forth.

She played the keys of the two pianos not only with her fingers, but at times