They all followed one another closely and I could not find what I would call a repeated vocal pattern in the music. I would appreciate your input. I am also very interested in ordering your book. Thank you so much for your time in putting all of this together. While the singing does sound like vocalizing, they are actually songs sung in the language of the drum.
Some songs are very old and have been passed through generations.
Others are contemporary and written about events in society today. This is discussed in the book, and I think you'll find it very helpful and informative. Best of luck. Wow at City College of San Francisco. I have been able to secure the staffs.