"My creed for art in general is that it should enrich the soul; it should teach spirituality by showing a person a portion of himself that he would not discover otherwise. The artist has to find something within himself that's universal and which can be put into terms that are communicable to other people. The magic of it is that art can communicate this to a person without his realizing it. Enrichment, that's the function of music".
Bill Evans, interview with Don DeMicheal (1969)