Eye music
DEFINITION
Music that is pleasing or puzzling to the eye, regardless of how it sounds to the ear. In some cases, the music may make no sense to the ear, but has a secret puzzle or message when visually analyzed. This music was most common in the Middle Ages and Renaissance periods (2) .See also word painting; text painting.system of notation wherein the affective (in addition to acoustic) properties of the music are indicated by special symbols or methods of notation