Compose a piece using the specified musical pattern based on the alphabet notation and provided melodic motif.
X:1
L:1/8
M:6/8
K:G
['D G2 GGGG']  
X:1
L:1/8
M:6/8
K:G
 D | A2 AGGD | AAA F2 D | A2 AGGD | AAA F2 D | G2 GGGG | d2 z3 D | G2 GGGG | d2 z3 D | G2 GGGG | 
 G2 z3 |]  