alleluia vs motet

alleluia

noun
  • A choral composition incorporating alleluia in its text. 

  • A liturgical form of hallelujah. 

  • The plant wood sorrel. 

intj
  • A liturgical or variant form of hallelujah. 

motet

noun
  • A composition adapted to sacred words in the elaborate polyphonic church style; an anthem. 

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