classical music

/K L AE1 S IH0 K AH0 L M Y UW1 Z IH0 K/
noun
  1. 1

    Music of the classical period; the music of Mozart, Haydn, etc; the musical period before the romantic.

  2. 2

    The more serious forms of music, taught through formal education and performed according to strict rules, as opposed to folk music or popular music.

Source: https://en.wiktionary.org/wiki/classical%20music