I haven't had a chance to listen to his music yet, so if one shops around and finds anything particularly nice, let me know so I can post a link here.
I found a parkette on a hilltop in La Paz where Moreno's friends and fans have made a lovely monument to him. I think anyone who inspires that is worth a listen to. I am really taken by the simplest thing: that the wrought iron fence that keeps folks like me from falling off the cliff is designed to look like musical notes. What a neat piece of thoughtfulness.
In all, this shows me that Bolivia and life in general can be grand if only one has a bit of money, a bit of time, and a desire to love living. It doesn't take too much beyond attitude and a few dollars in a clean, well-lighted place.