The Rocar has the same function as the Ganza, and plays a very simiar part (See description of Ganzas for more details!), although the Rocar is MUCH louder, definately designed for Samba Schools, where volume is necessary! With many tambourine-like jingles on top of one another, this instrument makes a metalic, cutting rhythm, although it also takes alot of energy! Contemporânea are renownowned for making very high quality instruments.