Mr. Porter himself could not characterize his songs.

"I don't know how my music gets that way," he said when he was asked to make the effort. "I simply can't analyze it. I can analyze the music of others. The word for Dick Rodgers's melodies, I think, is holy. For Jerome Kern, sentimental. For Irving Berlin, simplicity. For my own, I don't know."

On This Day: Birthdays: June 9