| Cak | |
| Image Capt: | The instrument being played as part of a keroncong group. The Cuk is on the left and the Cak is on the right. |
| Background: | string |
| Classification: | String instrument |
| Hornbostel Sachs Desc: | Composite chordophone |
| Developed: | Indonesia |
| Related: | Cuk (instrument), Ukulele, Cavaquinho, Banjo |
The Cak is a stringed musical instrument from Indonesia. It has four strings in three courses. It is tuned D5 D5, F#4, B4. The strings are made of steel.
The instrument evolved from a small banjo, but now has a wooden front and a guitar-shaped body. The body is usually hollowed out of a solid piece of wood. The soundboard has many little soundholes arranged in a geometric pattern. It is mainly used to play Keroncong music along with the Cuk.