Generate a piece of music. The title is Duikou shange. It belongs to the genres of "Shange"and " Mengjiangn diao. Chang huahui". It is from Asia, China,nan Zhejiang, Cixi. Its meter type is irregular.  
X:1
T:Duikou shange
T:Duikou shange
L:1/8
M:3/4
I:linebreak $
K:A
V:1 treble nm="Voice" snm="V"
V:1
 e'/c'/c'/a/ b2 | c'/e'/4e'/4c'/a/ b2 x2 | bb/b/ ba x2 | fe c>e x2 | b/g/f e2 x2 | e/f/f fa x2 | %6
 c'b ba f2 |[M:2/4] a/c'/b ba | fe ce | bg/f/ e2 | c'/c'/4e'/4c'/a/ b2 | c'/e'/4e'/4c'/a/ b2 | %12
 f/c'/b ba | fe ba | f>e ce | b/g/f/a/ e2 | e/f/f fa |[M:3/4] c'b ba f2 |[M:2/4] a/c'/b ba | %19
 fe ce | b/g/f/a/ e2 || %21  