Big haegum is a Korean traditional instrument in charge of bass of the instruments of the same kind.
  Because the instrument is big, its legs are placed on the floor and the resonance box is placed between the two knees, and it is played in a chair-sitting position in a way similar to the playing of the cello.
  The tone is soft, melancholy and gentle, and is widely used in various musical forms such as solo, concert and ensemble.