champagne flute vs xiao

champagne flute

noun
  • A piece of stemware with a long stem and a tall, narrow bowl on top, designed to keep champagne desirable during its consumption by preventing heat from the drinker's hand from warming the champagne while retaining its carbonation. 

xiao

noun
  • A type of Chinese flute. 

How often have the words champagne flute and xiao occurred in a corpus of books? (source: Google Ngram Viewer )