I have found that the bells are far more important than the dunun when it comes to seeing how they fit together, which is why I created "The Dark Art of the Dunun", which teaches an analytical approach to bell patterns and dunun rhythms.
I have been teaching this approach informally to select people from my djembe class for the last 12 months, and been getting excellent results in raising the overall standard of dunun playing here in Canberra.
These workshops have been the seed that inspired the book, and the next step is to offer online video lessons teaching dunun skills based on the principles used in the e-book.
Sign up at http://www.tanamasi.com
as a free member to get a sample page of the book, the first online video and some practice tracks. Try them out and then decide whether you wish to just work through the book, or to do a lesson membership which includes the book!
Hope it helps.
ps, and yes, I strongly recommend Percussion Studio to practice against, although it will never replace peoples
Check out my website - http://www.tanamasi.com
for my new e-book, "Dark Art of the Dunun"...come over to the dark side of drumming!!