Drumming is an important part of the cultural heritage. The world-famous Royal Drummers of Burundi, who have performed for over 40 years, are noted for traditional drumming using the karyenda, amashako, ibishikiso and ikiranya drums. Dance often accompanies drumming performance, which is frequently seen in celebrations and family gatherings. The abatimbo, which is performed at official ceremonies and rituals and the fast-paced abanyagasimbo are some famous Burundian dances. Some musical instruments of note are the flute, zither, ikembe, indonongo, umuduri, inanga and the inyagara.