lop vs musical saw

lop

noun
  • That which is lopped from anything, such as branches from a tree. 

  • Any of several breeds of rabbits whose ears lie flat. 

  • A flea. 

verb
  • To hang downward; to be pendent; to lean to one side. 

  • To allow to hang down. 

  • To cut off as the top or extreme part of anything, especially to prune a small limb off a shrub or tree, or sometimes to behead someone. 

musical saw

noun
  • A musical instrument consisting of a thin sheet of metal, or sometimes a saw, usually played with a bow. 

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