The Modulation I and II chapters have been revised as of Feb 21.2013. Corrections were made, and some new material was added.
PowerPoint on Greek/Catholic hymns has been updated. Feb 13.2013.
The New Worship Theory Book, Vol III, chapter 31 on Modulation has been updated.
The Keyboard Improv Book, chapter 3 on 3+1 Voicings has been updated.