Gamelan Gamelan Gamelan () is the traditional ensemble music of Java and Bali in Indonesia, made up predominantly of percussive instruments. The most common instruments used are metallophones played by mallets and a set of hand-played drums called "kendhang" which register the beat. Other instruments include xylophones, bamboo flutes, a bowed instrument called a "rebab", and even vocalists called "sindhen". Although the popularity of gamelan has declined since the introduction of pop music, gamelan is still commonly played on formal occasions and in many traditional Indonesian ceremonies. For most Indonesians, gamelan is an integral part of Indonesian culture. The word gamelan
Gamelan Bali, remarked, "Deviations in what is considered the same scale are so large that one might with reason state that there are as many scales as there are gamelans." This view is contested, however, by some teachers of gamelan, and there have been efforts to combine multiple ensembles and tuning structures into one gamelan to ease transportation at festival time. One such ensemble is gamelan "Manikasanti", which can play the repertoire of many different ensembles. Balinese gamelan instruments are built in pairs that are tuned slightly apart to produce interference beats, ideally at a consistent speed for all pairs of