List the different ethnographic categories in music.

An ethnography is the study of human activity in context. A musical ethnography is the study of human musical activity in context.

Explanation:

you make more money, you can get a better job, you have a better education, you are wanted more by most employers.

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.