Dǎ yuán 打圆 (trad. 打圓) “Striking Round” or Lún zhǐ 論指 (trad. 輪指)

Alternate plucking two strings one octave apart with the thumb and middle finger with closing motions. Pluck with the thumb first on the higher-pitched string, then pluck with the middle finger on the lower-pitched string. The pattern is typically played as 16th notes. It has ties to the Chaozhou School style of music.

Kao suggests Shandong players may use the name Bā dù lún 八度轮 “Octave Round” to refer to this technique. Two other notation variants: