Generate a piece of music. The title is Kan nangua. It belongs to the genres of "Xiaodiao. Laodong"and " Zhongzhi". It is from Asia, China, Shanxi Zuoquan. Its meter type is simple duple.  
X:1
T:Kan nangua
T:Kan nangua
L:1/8
M:2/4
I:linebreak $
K:Bb
V:1 treble nm="Voice" snm="V"
V:1
 dc B2 | fc B2 | Gf df | dc B2 | GB cf | dc B2 | GD FG | DC B,2 | dc df | dc Bc | AG F2 | FF FG | %12
 AG B2 | GF FG | DC B,2 || %15  