What can be compared with Bach's music is pure mathematics and number theory. This kind of music is as logical as mathematics (as long as a fugue is "deduced" on both sides with a keyboard, it can be remembered and "repeated"), and like number theory, it is not only a science, but also a very beautiful art (abstract and beautiful, think about Galois' group theory). This kind of thing will naturally make you stay indoors for a long time and not feel lonely. .................................................................................................................................................................................. This kind of music, like pure mathematics, can be the free creation of human mind, but the logic of creating it is objective and rigorous. The products created can be extremely rigorous, beautiful and highly original and insightful at the same time.