Of course, one cannot say that an element always attracts the same element, for the element also attracts what it lacks, what is opposite to it. When we think of friendship, we see that with some we feel inclined to be friends and from others we feel inclined to keep away. And the most interesting part is that those whom we feel disinclined to be friends with, have also some who are drawn towards them in friendship. This leads us to the truth which lies in musical harmony: how two notes have a relation to one another and their combination brings about a harmony.