- Human voices: The kecak is performed by a group of men who sit in a circle and chant in a rhythmic pattern. The voices create a percussive sound that accompanies the dance.
- Gamelan: The gamelan is a set of traditional Indonesian instruments that includes gongs, metallophones, and xylophones. The gamelan is used to provide accompaniment for the dance.
- Kecak suling: The kecak suling is a flute that is used in the kecak performance. The suling is played by a single musician and provides a melodic line for the dance.
- Other percussion instruments: Other percussion instruments that may be used in the kecak include drums, cymbals, and bells. These instruments are used to add rhythm and texture to the performance.