In which style are the musicians most likely to have training in classical music: art rock glam rock heavy metal?

What are the letters of the line in the typical cliff in order from bottom to top of the staff

In "thirty are better than one" 1963 by andy warhol describe to what degree this image depicts rhythm or pattern

Sorry about the calculator and me asap me asap because for real like some no one answers question one for me so that's why i'm posting them over to that way someone can at least answer number two or one for me if you do you so much if you do it would be a complete big blessing to me