gata bera
Also: gata beraya gata-bere
Contextual Associations
The gata bera is a double-headed membranophone from Sri Lanka. Its primary contexts of usage are: the now rarely realized kohomba kankariya, a ceremonial practice of supplication to the god Kohomba through a three-day epic dance drama; Buddhist temple events; classical Kandyan dance accompaniment; and tourist presentations, which typically present a sampling of practices from the other three contexts. As part of the kohomba kankariya, drummers compete in opposing teams to outdo one another, as well as the dancers, in demonstrating their skill. This practice is reported by some as utilizing the entire repertoire for the gata bera. At daily prayer times in Buddhist temples the gata bera can be played solo as a sound offering called magul-bera (see video #1). Kandyan dance, which is accompanied by the gata bera and has become somewhat of an icon of Sinhalese Sri Lankan national identity, is widely taught in Sri Lankan public and private schools and universities, and perpetuated and developed at private dance schools. The latter are sometimes run by members of a specific, low caste called the Berava, to whom in times past the performance of the gata bera was restricted. The second video clip shows a group of Berava drummers and dancers participating in a temple festival. So important is the gata bera to the Sinhalese majority of Sri Lanka that they attribute its invention to the Hindu god Brahma and see it as symbolizing a well-ordered universe--the two heads represent the sun and the moon, the flare at the center of the shell the earth (Webber).
Description
The drum's shell is lathed from asala wood and given a relatively minor central flare, just 2.5 in. larger at the center of the barrel than at its ends, to give it its characteristic double-conical shape. The decorations on this instrument appear to all have been done on the lathe and are bilaterally symmetrical. The heads are composite hide—one of ox and one of monkey—that are stretched over cane hoops, slightly larger in diameter than the ends of the shell, and secured with braided cowhide (see detail photo). The heads are then connected to one another over the length of the shell with cowhide laces in a zigzag pattern (indirect lacing). A cowhide loop protrudes from each head, connected to each other via a cotton rope strap. One end of this gata bera has a removable hide cover tied to a cord.
Player - Instrument Interface and Sound Production
The gata bera is suspended horizontally from the standing player’s waist with the rope strap, while the left and right heads are sounded with the left and right hands respectively (many makers tailor the drum to the player’s body size). The general tension/tuning of the heads is achieved by pulling on each section of the zigzag lacing consecutively until all slack is removed. Fine tuning is accomplished by hitting the hoops of the heads with a wooden wedge-shaped beater. As can be witnessed on both video clips, gata bera drummers produce a variety of strokes that can be delivered at times with stunning speed. The head made from ox hide produces a more muted tone than the one made from a monkey's stomach, on which is produced a particularly distinctive timbre with a buzzing quality (audio clip).
Origins/History/Evolution
The Yapahuwa fortress in Sri Lanka has stone reliefs representing an instrument much like the
gata bera. This fortress was only occupied for a short time at the end of the 13
th century. While the form of a double-conical drum is present, it is unclear if this is a depiction of the activities of Yapahuwa inhabitants, or the iconography employed by artists who had been imported from a much larger geographic area. There is very little other data from which to ascertain with any accuracy the arrival of the
gata bera in Sri Lanka.
Instrument Information
Origins
Continent: Asia
Region: South Asia
Nation: Sri Lanka
Formation: Sinhalese
Classification (Sachs-Von Hornbostel revised by MIMO)
211.232.12 membranophone--individual double-skin double conical drum, both heads played
Design and Playing Features
Category: membranophone
Number of drums comprising instrument: single drum
Shell design: tubular - compound-conical
Number and function of membranes: two, both for sounding
Membrane design: framed with stiff woven hoop
Membrane attachment: framed membrane hoop connected by lacing to framed membrane hoop
Membrane tension control: pulling directly on lacing
Sounding for membranophone: striking directly with both hands
Sound modifiers for membranophone: none
Dimensions
27.5 in. length of shell
10.5 in. greatest diameter of shell
8 in. diameter of shell at both ends
8.5 in. diameter of heads
Primary Materials
wood
membrane - mammal skin
lacing - rawhide
Entry Author
Gaelyn Hutchinson