I have an assignment due next week about music analysis. Even if I have had researched about this topic, I have been still having hard times to understand those concepts. So, my question is that when I listen a music, how do I know that part is melody and the other parts are harmony and tempo? How can I differentiate between each other? Also, it's asking me how many melodies are there? So, How do I count how many melodies there are. What are the effects of melody and harmony on listener in music?