Gamelan gender wayang is a style of gamelan music played in Bali, Indonesia. It is required for wayang (shadow puppet theatre) and most sacred Balinese Hindu rituals. The smallest of gamelan ensembles, it requires only two players and is complete at four, the additional instruments doubling an octave above. Like other gamelan genres, it incorporates delicate interlocking melodies and active contrapuntal movement, yet poses unique challenges in technique and composition.