Gamelan notation ladder-like vertical staff allowed notation of the balungan by dots and also included important drum strokes. "Kepatihan" is widely used in ethnomusicological studies of the gamelan, sometimes accompanied by transcriptions into Western staff notation with approximate mapping of slendro and pelog tuning systems of gamelan onto the western staff, with and without various symbols for microtones. The relative merits of "kepatihan" and staff notation are sometimes debated, but staff notation is essentially incompatible with the 'end-weighted' nature of melodic structures in Indonesian music. In this respect, "kepatihan" is more suitable, although the usage of overscores (taken from the Galin-Paris-Chevé system)
Gamelan instruments are indeed included in a complete gamelan orchestra. Musical instruments such as the bamboo flute, bells, drums in various sizes, lute, and bowed and plucked string instruments were identified in this image. However it lacks metallophones and xylophones. Nevertheless, the image of this musical ensemble is suggested to be the ancient form of the gamelan. The instruments developed into their current form during the Majapahit Empire. According to the inscriptions and manuscripts dated from the Majapahit period, the kingdom even had a government office in charge of supervising the performing arts, including the gamelan. The arts office oversaw the