For those who are curious about Just Intonation but who are more of a casual listener and find the usual examples either way too experimental or academic, Neurogenesis by Robert Rich is a great and immensely pleasant-sounding, relaxing electronic ambient album masterfully written in pure JI (I really think it lends itself to the genre).

As a nice touch, you can listen to it before you buy—which I did (and I did): https://robertrich.bandcamp.com/album/neurogenesis