Generate a piece of music. The title is Zuo junxie. It belongs to the genre of Xiaodiao. It is from Asia, China,Ningxia Yanchi. Its meter type is simple duple.  
X:1
T:Zuo junxie
T:Zuo junxie
L:1/8
M:2/4
I:linebreak $
K:Bb
V:1 treble nm="Voice" snm="V"
V:1
 b2 gf | b2 gf | f'2 f'2 | f'e' c'2 | f'2 gb | c'2 f'2 | f2 gf | f4 | f>f gb | c'2 f'g | f2 gf | %11
 f2 f2 || %12  