Listen to the soothing sound "illusion" of these Healing Chime as the precisely tuned tubes work together to create rich harmony. The special tuning of these chimes creates the illusion seems that there are more tones than the number of its tubes, such as the low bass notes created in your ear! The result is as amazing as it is unique, since we use a beautiful ancient tuning not heard on any modern instrument. Unique addition to any Porch or Patio to bring home the sound of the Wind! Woodstock Wind Chimes