Eo (Eng: tiger) (hangul: 어; hanja: 敔) is a wooden percussion instrument carved in the shape of a tiger with a serrated back,[1] played by running a bamboo whisk across it to mark the ends of sections. Its name is derived from the Chinese yǔ. On the back of the tiger is a Jeo-eo (저어, 齟齬) that looks like 27 saws. When the music stops, the performer knocks and scratches this Jeo-eo through the Jin (진) and gives a signal.
