It’s not music but rather audiobooks that are my concern. My public library system (SFPL) does not put an emphasis on acquiring audiobooks. It’s acquiring ebooks and also providing services such as Hoopla, and the only way to listen to books from Hoopla and similar apps is to use an app such as FBReader which will read material but with a mechanical non-dramatic computer voice. I’m not opposed to buying standard audiobooks, but I’ve noticed that audiobooks using the MP3 format are a heck of a lot cheaper which is the reason I asked my original question.