On Order. 45 Day Lowest Price - 100% Satisfaction Guarantee. The video features Jorge Bermudez, a talented, and warm-spirited Bay Area drummer and drum teacher. He demonstrates "mano secreta," the technique used by Cuban drummers to protect the hands and play with grace and fluidity. If you don't have a drum machine, this CD is the next best thing. It contains extended recordings of the son clave, rumba clave, and 6/8 cowbell (played slow, medium, and fast) to play along with while you practice.