The art director at harper's bazaar from 1934 to 1958, used white space as a design element and sought "a musical feeling" in the flow of texts and visuals.

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.