Harmonic / Complimentary
Harmony, whether in music or myriad other forms, occurs when there is an interaction in a complimentary manner. For example, two people dancing or perhaps walking hand in hand are usually acting in harmony. One might consider geese flying in a V formation a form of harmonic interaction. In traditional music notation, notes that occur simultaneously… that are stacked in numerical relationship on the musical staff, are usually considered harmonically related.
In the following example, the white hazy objects in the foreground seem to be acting independently of the music. However, the colored shapes in the background could be considered to be acting in a loose harmony with the music. This is an example of harmony and disparity interacting within the same scene.