xián​wài​zhī​yīn

overtone

  1. string
    the string of a musical instrument; (by extension) stringed instruments or music; (bound form) to play a stringed instrument; to bend or curve something
  2. wài locative
    outside
    outside; exterior; the space or position beyond a certain limit or boundary
  3. zhī particle
    [possessive]
    Connects a describing word or phrase to the noun it describes, similar to de but used in formal or literary writing.
  4. sound
    sound; noise; tone; musical note; a person's voice or pitch