Babel vs drumming

Babel

noun
  • A place or scene of noise and confusion. 

  • A confused mixture of sounds and voices, especially in different languages. 

  • A tall, looming structure. 

name
  • The city and tower in the land of Shinar where the confusion of languages took place, according to the Bible. 

drumming

noun
  • A noise resembling that of a drum being beaten. 

  • In many species of catfish, the sound produced by contraction of specialized sonic muscles with subsequent reverberation through the swim bladder. 

  • The act of beating a drum. 

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