Think of a famous musician of the time. Now consider the best music he has ever created. When you say you like a music very much, you can’t really trace out the reason why you like the music, except a few common reason that its soothing, good composition.etc. Or may be because you like the voice of the singer. When you consider a case of a not-so-good music and compare it with the song you liked, there is a very small question that arises. How was a song good to listen and other bad when both were composed of the variations of the seven basic notes of music. From early ages of the Mozart to the fresh hits of LMFAO, the basics of the music is just the seven notes.