You can draw a line between what I'm interested in and what I'm not interested in. On one side you can name Dylan and Lennon, who observe the world and have feelings, and write songs directly from those feelings. On the vapid side you have pop groups who need material and write songs to fill the hole, rather than getting somebody else.
Chess is a very positive way to exercise your mind. It makes you look at the whole picture. . . what are your options and what is the best thing to do? In football, you are mostly reacting from a defensive point of view. . . but you always want to be counterattacking. . . a similarity with chess strategy. Chess and offensive football are quite similar; you sacrifice something now to get something back later.