Dubbed 'King of the Waltz' by the media, André Rieu has renewed interest in waltz music, done battle in the pop charts with his huge-selling albums and toured the world with his huge arena concerts.

My mother would have loved André Rieu. She loved Lawrence Welk, too. And Victor Borge. This is not to suggest that she was unsophisticated. An accomplished pianist, she was so offhanded about it that ...