Blues, purples, and greens are what type of colors

The arrangement of the pitches in a piece of twelve tone music is called

lkjhghnvnbvjhghbnkj,n,hn,mn find me

Above is a picture of one of the most famous discoveries ever to be found in china. answer the following questions: - what does the picture show? - when and where was it discover? - who discovered it and what was he doing when he/she discovered it?