What does ombak means?

What do you call the group of instruments that produce a pitch when struck?

_______ is an older scale with five even pitches.

It is considered as one of the most important instrument in an ensemble. It is struck once at the beginning of every phase to signal a new section.

It is a collection of hollow "kettles" or "pots" of different sizes instrument. Sometimes referred to as "gongs" but not a traditional flat gongs.

It is a pair of metallophones that are composed of flat discs rounded into a hollow banana shape that produce a resonant pitch when struck.

It is made of buffalo hide and is used to tell the story of Mahabharata or Ramayana.

_________ is a newer scale with seven uneven pitches

A central "core melody of gamelan music that is played by small number of instruments.