I found this video of a master atabaque player demonstrating some of the most used rhythms in umbanda.
For about a year these are the rhythms I am also studying and playing during our rituals.
I am no where close to the level performed in this video but its realy inspirational to me to hear where more pracise can lead to.
I hope you enjoy it as much as I do.
https://www.youtube.com/watch?v=Fp1AMML3bMs