Please tell me the 1) abstract expressionism 2) cubism and 3) surrealism differences and similarities. it's for an essay so more details would be great.

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.  

there’s way too many plays to pick just one, which one art thou talkest about