Generate a piece of music. The title is Derry Ding Ding Dason. It belongs to the genre of Round.  
X:1
T:Derry Ding Ding Dason
T:Derry Ding Ding Dason
C:Music21
L:1/4
Q:1/4=120
M:3/4
I:linebreak $
K:G
V:1 treble 
V:1
 d/d/ d d | B G z | d d d | B G A | B G A | G G A | B G A | G G D | !>!G2 D | !>!G2 D | !>!G2 D | %11
 G2 z || %12  