Early photography required a long exposure time and the developing process was laborious. Handling of silver powder was also risky. However, early photography was such an important feat. Portraits were famous subjects of photography. Pictures of landscapes and everyday life were also common.
This is only an idea, but an advantage could be that you don't have to wait for it to dry and disadvantages could be that you don't get as vivid colours?
As in genre? If so R&B is one pop, rap and hiphop
Thomas Edison and William Dickson
