lyric vs vocative

lyric

noun
  • A lyric poem. 

  • The words of a song or other vocal music. 

adj
  • Of or relating to the lyre (or sometimes the harp) 

  • Of or relating to a writer of such poetry 

  • Having a light singing voice of modest range 

  • Of or relating to musical drama and opera 

  • lyrical 

  • Of, or relating to a type of poetry (such as a sonnet or ode) that expresses subjective thoughts and feelings, often in a songlike style 

  • melodious 

vocative

noun
  • Something said to (or as though to) a particular person or thing; an entreaty, an invocation. 

  • The vocative case 

  • A word in the vocative case 

adj
  • Of or pertaining to calling; used in calling or vocation. 

  • Used in address; appellative (said of that case or form of the noun, pronoun, or adjective, in which a person or thing is addressed). For example "Domine, O Lord" 

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