I'm listening to a Murakami, "Hard-boiled Wonderland and the End of the World". I listened 6 hours and left 8 hours. There are two different storylines. The first one was narrated in preset sentences and the other was in past sentences.
Sometimes, I've found preset sentences in books and interviews. Some interviewee spoke in past sentences, but when his story went into his abduction experience, suddenly he spoke in present sentences. It was really interesting.