The kempyang and ketuk are two instruments in the

gamelan Gamelan () ( jv, ꦒꦩꦼꦭꦤ꧀, su, ᮌᮙᮨᮜᮔ᮪, ban, ᬕᬫᭂᬮᬦ᭄) is the traditional ensemble music of the Javanese, Sundanese, and Balinese peoples of Indonesia, made up predominantly of percussive instruments. ...

ensemble of

Indonesia Indonesia, officially the Republic of Indonesia, is a country in Southeast Asia and Oceania between the Indian and Pacific oceans. It consists of over 17,000 islands, including Sumatra, Java, Sulawesi, and parts of Borneo and New Guine ...

, generally played by the same player, and sometimes played by the same player as the

kenong The Kenong is a musical instrument of Indonesia used in the gamelan. It is a kind of gong and is placed on its side. It has the same length and width. Thus, it is similar to the bonang, kempyang, and ketuk, which are also cradled gongs. Kenon ...

. They are important beat-keepers in the colotomic structure of the gamelan. Depending on the structure, they play different, repeating patterns every gongan. Not all structures use the kempyang, but the kempyang is never played without the ketuk. They are shaped like

bonang The bonang is an Indonesian musical instrument used in the Javanese gamelan. It is a collection of small gongs (sometimes called "kettles" or "pots") placed horizontally onto strings in a wooden frame (''rancak''), either one or two rows wi ...

, but are generally placed in their own frame (''rancak''). The kempyang is pitched higher (about one

octave In music, an octave ( la, octavus: eighth) or perfect octave (sometimes called the diapason) is the interval between one musical pitch and another with double its frequency. The octave relationship is a natural phenomenon that has been ref ...

, although it depends if they are in the

pelog Pelog ( su, ᮕᮦᮜᮧᮌ᮪, translit=Pélog /pelog/, jv, ꦥꦺꦭꦺꦴꦒ꧀, ban, ᬧᬾᬮᭀᬕ᭄, translit=Pélog /pelok/) is one of the essential tuning systems used in gamelan instruments that has heptatonic scale. The other, ...

slendro Slendro ( jv, ꦱ꧀ꦭꦺꦤ꧀ꦢꦿꦺꦴ, ban, slendro, translit=Sléndro) ( su, salendro, translit=Saléndro) is one of the essential tuning systems used in gamelan instruments that have pentatonic scale. Based on Javanese mythology, ...

set. Both have a central boss like the bonang, but the kempyang has a rounder top (like the higher bonangs), while the ketuk has a flat top (like the lower bonangs). In the common numerical notation, kempyang strokes are marked by "-" while the ketuk is marked by "+". The ketuk pattern is used to classify longer gendhing types, where it refers to the number of ketuk strokes in a nongan.

See also

Further reading