What materials is Chang ku made from?

Chang ku, also known as the "Korean hourglass drum," is traditionally made from buffalo hide stretched over a wooden frame.

Here's a breakdown of the materials:

* Hide: Typically buffalo hide, but sometimes cow hide is used.

* Frame: Made of a sturdy hardwood like oak or pine.

* Lacquer: The frame is often lacquered to provide a protective coating and add a glossy finish.

* Decorations: Chang ku may be decorated with paint, carving, or inlaid designs.

It's important to note that modern versions of the chang ku may incorporate other materials, such as synthetic drumheads, for increased durability or specific sonic properties.