Music and fine dining

Saw this amusing article today. Excerpts:
Researchers at Britain's universities of Leicester and Surrey persuaded a restaurant to alternate silence, pop music and classical on successive nights over 18 days, Sunday's Observer newspaper reported.

On nights when the classics were playing -- a tape of Beethoven, Mahler and Vivaldi -- patrons spent more on dinner, especially on "luxuries" such as coffee, dessert, fine wines and starters.