- Robert C. Provine
Double-headed hourglass drum, the chief percussion instrument of Korea (chang: ‘stick’; go: ‘drum’). It is also known as changgu (especially in central Korea and among folk performers), sŏlchanggo (for the instrument used in the farmers’ percussion band music nongak), and seyogo (a Chinese term used in certain historical sources, meaning ‘narrow-waisted drum’). The changgo body is made in various sizes, and in general a changgo used in court music and for subtle accompaniment will be larger and deeper-toned than one used in nongak and in certain types of folk song.
The body of the instrument is made of a single piece of paulownia wood, fashioned in the shape of an hourglass and hollow even at the narrow waist. The body ranges in length from roughly 40 to more than 60 cm and in diameter at the ends from roughly 20 to more than 30 cm. It may be painted red and decorated with traditional motifs, though some drums used in ...