choral vs mellifluous

choral

adj
  • Of, relating to, written for, or performed by a choir or a chorus. 

mellifluous

adj
  • Sweet, smooth and musical; pleasant to hear (generally used of a person's voice, tone or writing style). 

  • Flowing like honey. 

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