paradiddle vs whirr

paradiddle

verb
  • To produce percussive sounds of this kind. 

noun
  • A percussive exercise (one of 26 drum rudiments) which involves playing four even strokes in the order ‘right left right right’ or ‘left right left left’ 

whirr

verb
  • To make a sibilant buzzing or droning sound. 

  • To cause (something) to make such a sound. 

  • To move or vibrate (something) with a buzzing sound. 

noun
  • A sibilant buzz or vibration; the sound of something in rapid motion. 

  • A bustle of noise and excitement. 

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