New Age vs New Age music

New Age

noun
  • A modern spiritual and religious movement. 

adj
  • Of or relating to a broad movement in Western culture, covering a wide variety of alternative spiritual and philosophical ideas, often spirituality, mysticism, holism, and environmentalism, and partially based on eastern religions such as Buddhism and Hinduism, that developed towards the end of the 20th century. 

  • Of or relating to New Age music. 

New Age music

noun
  • A genre of music of a mystical and meditative nature, associated with New Age philosophies, usually in the style of world music and using the sounds of nature. 

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