Art is the expression of a person's emotion through the medium that person chooses. It may be through music, literature, photography, oil in the canvass, or other means. The medium is only the artist's instrument, which allows him or her to share his creative thoughts with others.
Technology has provided us with more tools to express ourselves. I have always been a visual person, and most of the art that I appreciate is visual. Most of the excellent artists that I know can create works of art in whatever medium they provide.