Pong Lang is the name of the bronze bell used for hanging around the cow’s neck, which is named after the sound it produces. Later this name is used to call the melody of the Kaen that imitates the bell sound. In the following periods the word is used to call a kind of percussive instrument named Maak Galor, Maak Khorlor or Maak Glingglom.
         The Maak Khorlor or Maak Glingglom is made of wood from the Mahaad tree or from the Maak Leuam tree. The wood is shaped into a round cylindrical piece of graded sizes in order to produce the desired 5 pitches, i.e. Me, Sol, La, Do, Re. Then the pieces of wood are stringed together and hung on any simple post, such as a tree or a post of a farmer’s hut, or on the built up post.
         The Pong Lang is usually played by 2 musicians. Each musician uses sticks made of hard wood to beat the instrument. One musician plays the Siang Sape (a regular rhythmic accompaniment), while another musician plays the melody of the songs, the same as the traditional Kaen melodies.
         The songs played by the Pong Lang are named according to the styles of the songs that are created from the surrounding nature, such as the flying bird, the dancing crow, etc.
         Besides, playing as a solo instrument, the Pong Lang is usually mixed in an ensemble and played in accompaniment with dances.