Kandy Temple of the Tooth Hevisi ritual drumming: Thammattama, Horanawa, and Geta Bera synchronization?

The morning ritual offering (Tevava) at the Temple of the Tooth in Kandy is accompanied by the sacred Hevisi ensemble, adhering to ancient Pancha Thuriya Nada principles. The ensemble centers on three instruments: the Thammattama (twin kettle-drums struck with curved cane Kadippu sticks to establish syncopated rhythmic drive), the Geta Bera (waisted barrel drum played with bare hands to provide polyrhythmic accompaniment), and the Horanawa (double-reed oboe horn played with circular continuous breathing to produce piercing, modal melodic glissandos). The music is not entertainment; it is an acoustic sonic barrier designed to seal sacred ritual space.