The musicals L.A. Vida and Haight have been fashioned into the eBook format and are available for free download from the iTunes store. Simply search for David Wendell Nelson. With enhanced description and extended story line, they contain hyperlinks to all the songs and incidental music. It is indeed an eBook that sings to you.
JMT-Solo on the John Muir Trail is Dr. Nelson's account of his epic 230 mile solo backpack trip in the magnificent Sierra Nevada. This eBook also contains hyperlinks to photos and videos of the hike.