High Art Essay

What does it mean for music to be considered High Art (you will have to do a little research to formulate your definition)

-Can something that is accessible be high art?
-Can something that is produced for money, marketed and sold be high art?
-Can something that is entertaining be high art?

Please explain your thoughts regarding the posed bulleted questions. Please provide at least two samples that you feel qualify as high art yet still meet the qualities listed in the bulleted list (if you agree). If you feel those qualities cannot exist in High Art, tell me why and provide two samples to defend your point of view.