Create music using the given musical theme and adhere to the outlined letter-based structure.
X:1
L:1/8
Q:3/8=90
M:6/8
K:G
['G3 E2 A FDd']  
X:1
L:1/8
Q:3/8=90
M:6/8
K:G
 G3 E2 A | FDd d2 c | BGd BGd | BGd AFD | G3 E2 A | FDd (d2 e/f/) | gfe dcB | AGF G2 z |:  