Generate a piece of music. The title is The traditional tunes of the Child ballads.  
X:1
T:Music21 Fragment
L:1/16
M:2/4
I:linebreak $
K:none
V:1 treble 
V:1
 GGG2 G2GB | A2AG E4 | B4 B4 | B2AB d2GA | B2dB A2AB | G2GA B2BA | Bd z2 AB z2 | GA z2 Bd z2 | %8
 D2D2 DEG2 | D2D2 E2D2 || %10  