The nagak is a large seashell

Seashell

A seashell or sea shell, also known simply as a shell, is a hard, protective outer layer created by an animal that lives in the sea. The shell is part of the body of the animal. Empty seashells are often found washed up on beaches by beachcombers...

 played as a horn

Horn (instrument)

The horn is a brass instrument consisting of about of tubing wrapped into a coil with a flared bell. A musician who plays the horn is called a horn player ....

 in Korean traditional music. It produces only a single tone and is used primarily in the military

Military

A military is an organization authorized by its greater society to use lethal force, usually including use of weapons, in defending its country by combating actual or perceived threats. The military may have additional functions of use to its greater society, such as advancing a political agenda e.g...

 procession music called daechwita

Daechwita

Daechwita is a genre of Korean traditional music consisting of military music played by wind and percussion instruments, generally performed while marching...

.

The shell is that of a very large sea snail

Snail

Snail is a common name applied to most of the members of the molluscan class Gastropoda that have coiled shells in the adult stage. When the word is used in its most general sense, it includes sea snails, land snails and freshwater snails. The word snail without any qualifier is however more often...

, Charonia tritonis

Charonia tritonis

Charonia tritonis, common name Triton's trumpet, is a species of very large sea snail, a marine gastropod mollusc in the family Ranellidae, the tritons.Also see Charonia or Triton .-Distribution:...

, sometimes known as "Triton's trumpet". This shell is also used as a musical instrument in several other nations.

See also

• Traditional Korean musical instruments
  Traditional Korean musical instruments
  Traditional Korean musical instruments comprise a wide range of string, wind, and percussion instruments.-String:Korean string instruments include those that are plucked, bowed, and struck...
  
  
• Music of Korea
• Horagai
  Horagai
  ' are large conch shells that have been used as a trumpets in Japan for many centuries. The instrument, which has served a number of purposes throughout Japanese history, has been given a number of Japanese names depending on its function...
  
  , a similar shell horn used in Japan
  Japan
  Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
  
  
• Conch (musical instrument)
  Conch (musical instrument)
  Conch, or conque, is a musical instrument, a wind instrument that is made from a seashell, the shell of one of several different kinds of very large sea snail...
  
  
• Shankha
  Shankha
  Shankha bhasam , also spelled and pronounced as Shankh and Sankha, is a conch shell of ritual and religious importance in Hinduism and Buddhism. It is the shell of a large predatory sea snail,Turbinella pyrum found in the Indian Ocean....
  
  

The creator also wrestled a grizzly bear.

External links

나각 at Korean National Heritage Online