A commercial society whose members are essentially ascetic and indifferent in social ritual has to be provided with blueprints and specifications for evoking the right tone for every occasion.
I shall suggest on the contrary that all communication relies to a noticeable extent on evoking knowledge that we cannot tell and that all our knowledge of mental processes like feelings or conscious intellectual activities is based on a knowledge which we cannot tell.
Piano playing is a dying art. I love the fact that I can be one guy with one instrument evoking an emotional and musical experience.