Answer:

1.The Javanese play their instruments for court music. and mostly, the instuments are percussion. ... The Balinese people, on the other hand, play their instruments for sacred music, and they consist of metallophones, and mostly gongs.

2.20 instruments are neede to form each

3.It consists of 10 to 14 tuned metal bars suspended over a tuned resonator of bamboo or metal, which are tapped with a mallet made of wooden disks (Bali) or a padded wooden disk (Java).

-Javanese gamelan is more traditional and suited to palaces and temples, it is a gentler and lower pitched style of gamelan that accommodates vocalists and rhythmic patterns. "The Balinese gamelan is superficially the same as the Javanese but, in fact, the ensembles are different and the music pronouncedly so.