The Royal Drummers of Burundi perform their traditional ceremonies at a site near Gitega, which was historically the royal capital of the Kingdom of Burundi before Belgian administration moved the political centre to Bujumbura. The drummers maintain a tradition that dates back centuries, performing on the sacred karyenda drums in elaborate choreographed sequences involving drumming, chanting, and dance.
Performances for visitors can sometimes be arranged through the National Museum of Gitega or through tour operators working in Burundi. The Museum has information on current performance schedules and can assist with contacting the drummers directly. If you are in Gitega without a specific arrangement, asking at the museum about upcoming performances is the best approach — the tradition is genuinely sacred as well as performative, and access is not always available on demand.