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. Gamelan is the traditional ensemble 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 drums called the which registers the beat. Other instruments include xylophones, bamboo flutes, a bowed instrument called a fiddle, and even vocalists called sindhen. Although the popularity of the gamelan has declined since the introduction of pop music, the orchestra is still commonly played on formal occasions and in many Indonesian traditional ceremonies. For most Indonesians, gamelan is an integral part of Indonesian culture.