Incredible new app helps the blind recognize colors and shapes through music The medical world has been revolutionized by tech**logy again and again, yet even the smallest advancement is still able to surprise and delight us. National Geographic has drawn our attention to one app that provides the blind with an aural alternative to vision. EyeMusic SSD*(sensory substitution device), an app for iOS devices, captures shapes in the environment and translates them into what the developers call a "Soundscape" through musical **tes.