If you want to get more out of your reading with some music, Muzify is a great option. It generates a personalized playlist based on the books you read, designed to capture the book's mood and tone. You can import the playlist into Spotify and customize it to your tastes. The service works on any device, so you can get the music and reading experience without any special software.
Another interesting option is Audioread, which converts written documents into audio. That can be useful for doing other things while listening to articles, emails and other documents. Audioread has very realistic voices and works on multiple platforms, so it's good for getting things done and being productive. You can even generate a private podcast RSS feed so you can listen with your favorite apps.
If you prefer audiobooks, Playtext offers a text-to-audiobook conversion service. The system works in multiple languages and lets you set the reading speed to your liking. It also has customizable keyboard shortcuts and the ability to save articles with AI-generated voice, so it can be useful for improving comprehension and retention.