bagpipes vs hosepipe

bagpipes

noun
  • A musical wind instrument of Celtic origin, possessing a flexible bag inflated by bellows, a double-reed melody pipe and up to four drone pipes; any aerophone that produces sound using air from a reservoir to vibrate enclosed reeds. 

hosepipe

noun
  • A flexible pipe for carrying water or other liquids; a garden hose. 

verb
  • To film with erratic panning movements of the camera. 

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