continuant vs legato

continuant

noun
  • A linguistic sound other than a stop. 

  • An endurant. 

  • A determinant formed from a tridiagonal matrix. 

adj
  • Continuing; prolonged; sustained. 

legato

noun
  • A passage that is played legato. 

  • A style of performance characterized by smoothly connected notes. 

adv
  • Smoothly, in a connected manner. 

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