If you go to the pull down menu, MP3, you’ll find a half dozen representative sample mp3s that accompany the Improvisation for Singers and Instrumentalists book. In a second sub file in the MP3 menu bar 150 mp3 files are available that go with the 13 chapters in the book. All of this material, of course, is free of charge. It cost more than a $1000 to produce.
At some point in the future (perhaps later in the summer) selected mp3 files will be made available that accompany the New Worship Theory books (three Volumes). About a 100 mp3s are already completed.