Repeating: Reading & Listening

Even today, with smartphones and all, bound paper books have a strong connection to schools and education.  Books are a traditionally quiet tool while music isn't.  I am interested in the difference that seems to naturally arise between looking at words in books and Kindle and listening to music in the matter of repetition.  In many cases, people are not interested in re-reading a book but they are interested in listening to a favorite song or piece of music again.  The hard to get book, "On Repeat" by Princeton professor Judith Margulis and the C.S. Lewis book "Experiment in Literary Criticism".  Lewis asserts that those who are truly literary will easily read a good book over again.