by ABAKUA » Mon Apr 21, 2008 1:15 pm
Hello afrocubarico, without seeing the clip, I can only guess what you have seen are in fact metal shakers in the form of a light metal can around the top of the particular drummers wrist, certain drummers (drummers role) characteristically use wrist shakers in both yuka and rumba, particularly when boxes or cajones are played as drums.
Normally in yuka it is the drummer playing the Caja part, I have an old documentary on VHS where the Muñequitos de Matanzas' quintero is wearing the shakers I mentioned.