Generate a piece of music. The title is The traditional tunes of the Child ballads.  
X:1
T:Music21 Fragment
L:1/4
M:6/4
I:linebreak $
K:G
V:1 treble 
V:1
 G | G2 G E F G | A2 F D3 | B3 c3 | d3/2 d/ B G G G | G G G E F G | A2 F D3 | B3 c3 | %8
 d3/2 d/ B G G G | B2 c d2 B | e2 d c2 B | A2 G F2 E | A2 G F2 E | D3 G3 | F3 E3/2 D/ E | %15
 D3 G3/2 A/ F | G G2- G2 x || %17  