Wassily Kandinsky, a Russian painter, and art theorist, one said, "There is no must in art because it's free.". Expound his saying in 5 to 15 sentences.

'To me there is no art because it is free. I see at as it's own world to explore and dominate. I let my art do its own thing and let it fly. Art can choose itself. You just have to let it go.'

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.