A silverpoint drawing is used by dragging a silver rod or wire across a surface. This wire is usually called as a primer or gesso. It was used since the late Gothic/early Renaissance era.
Advantage: Renaissance artists used silver and occasionally lead point for preparatory sketches under their paintings and frescoes as well as for studies on paper.
Disadvantage: It is an unforgiving media because silverpoint lines are very difficult to erase, so fixing mistakes is not an easy task.
The answer is Indonesian gamelan. The Gamelan is a non western timbre and a traditional music ensemble of Java and Bali, Indonesia which comprises mostly of percussive instruments. The instruments used are metallophones played using mallets and drums named kendhang.
