melody vs pericope

melody

noun
  • A sequence of notes that makes up a musical phrase 

pericope

noun
  • A section of text forming a coherent thought, suitable for use in a speech. 

  • A passage of Scripture to be read in public worship or a book containing such passages. 

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