There are different kinds of music, each kind appealing to certain souls according to their evolution. For an instance, the children in the streets are very pleased by beating the time, because that rhythm has a certain effect upon them; but as a person evolves so he longs for a finer harmony. Why people like or dislike each other is owing to their different stages of evolution. For instance, one is at a stage when he appreciates a certain kind of music; another person whose evolution is greater wants music appropriate to his evolution. So it is in religion: some stick to certain beliefs and do not wish to evolve beyond. So it is possible that the lover of music may be tempted to keep to a certain sort of music, and will not rise further. The true way of progressing through music is to evolve freely, to go forward, not caring what others think, and in this way, together with one's development in music, to harmonize one's soul life, one's surroundings, and one's affairs.