harp vs violin

harp

verb
  • To play on (a harp or similar instrument). 

  • To repeatedly mention a subject. 

  • To play (a tune) on the harp. 

noun
  • Any instrument of the same musicological type. 

  • A grain sieve. 

  • A harmonica. 

  • A musical instrument consisting of a body and a curved neck, strung with strings of varying length that are stroked or plucked with the fingers and are vertical to the soundboard when viewed from the end of the body 

violin

verb
  • To play on, or as if on, a violin. 

noun
  • Any instrument of the violin family, always inclusive of violins, violas, and cellos and sometimes further including the double bass. 

  • A small unfretted stringed instrument with four strings tuned (lowest to highest) G-D-A-E, usually held against the chin and played with a bow. 

  • The position of a violinist in an orchestra or group. 

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