Gamelan Instrument 1
Bronze gangsa keys with electric sander.
![Bronze gangsa keys with electric sander.](/sites/default/files/styles/feature_callout/public/assets/images/music/Gamelan%201.gif.webp?itok=kwPj-wx4)
Gamelan Instrument 2
Gangsa cases with keys removed, showing the tops of the bamboo resonators.
![Gangsa cases with keys removed, showing the tops of the bamboo resonators.](/sites/default/files/styles/feature_callout/public/assets/images/music/Gamelan%202.gif.webp?itok=o8iRT5RQ)
Gamelan Instrument 3
Pak Kartawan compares the pitch of a bronze key and its resonator.
![Pak Kartawan compares the pitch of a bronze key and its resonator.](/sites/default/files/styles/feature_callout/public/assets/images/music/Gamelan%203.jpg.webp?itok=HEDhm0Zx)
Gamelan Instrument 4
Final check of a retuned gangsa key atop its resonator.
![Final check of a retuned gangsa key atop its resonator.](/sites/default/files/styles/feature_callout/public/assets/images/music/Gamelan%20image%204.jpg.webp?itok=RaddCOLp)