new age vs variation

new age

noun
  • New Age music. 

  • A modern spiritual and religious movement, covering a wide variety of alternative spiritual and philosophical ideas, that developed towards the end of the 20th century. 

adj
  • Of or relating to New Age music. 

  • Of or relating to the New Age movement. 

variation

noun
  • A technique where material is repeated with alterations to the melody, harmony, rhythm, timbre, texture, counterpoint or orchestration; but with some invariant characteristic, e.g. a ground bass. 

  • Deviation from the mean orbit of a heavenly body. 

  • The act of varying; a partial change in the form, position, state, or qualities of a thing. 

  • The angular difference at the vessel between the direction of true north and magnetic north. 

  • A related but distinct thing. 

  • A line of play that differs from the original. 

  • The modification of a hereditary trait. 

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