Harmony, as it is the only answer that includes multiple sounds at the same time.
The only way to create black by mixing colors is to combine the primary colors together. To do this with two colors, one may use one of three combinations, hues of yellow and purple, hues of orange and blue or hues of green and red.
The Clarinet is hard.... I attached a picture for you..
Laocoon(a classic hellenistic piece) , the dying gaul(the very beginning of hellenistic art)