Write few reasons at your work of art?

My art is basically based off of cartoons i like to draw many things from inspiration it helps me calm myself down and makes me feel like i have nothing to worry about

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.