amplitude vs bar line

amplitude

noun
  • The horizontal line which measures the distance to which a projectile is thrown; the range. 

  • The maximum absolute value of some quantity that varies. 

  • The arc of the horizon between the true east or west point and the foot of the vertical circle passing through any star or object. 

  • The maximum absolute value of the vertical component of a curve or function, especially one that is periodic. 

  • The measure of something's size, especially in terms of width or breadth; largeness, magnitude. 

  • The arc of the horizon between the true east or west point and the center of the sun, or a star, at its rising or setting. At the rising, the amplitude is eastern or ortive: at the setting, it is western, occiduous, or occasive. It is also northern or southern, when north or south of the equator. 

bar line

noun
  • A vertical line in musical notation used to separate two bars or measures. 

  • Synonym of crossline (“type of headline”) 

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