Gambangs refer to a musical instrument that produces sound by hitting wooden bars with mallets. This type of instrument is often used in traditional Indonesian music. In some regions, gambangs are alternatively called "marimbas," "xylophones," or "metallophones," as they share a similar construction and sound. "Bonang" is another synonym, referring to a type of gambang ensemble that is often used in Javanese gamelan. The word "gamelan" itself is also related to the use of gambangs in Indonesian music, as it refers to an ensemble of various percussion, gong and string instruments, which form a traditional orchestra. Overall, gambangs and their synonyms are important musical instruments in Indonesian culture.