Craft a musical piece in accordance with the designated structure and theme.
X:1
L:1/8
Q:1/4=104
M:4/4
K:Gmin
['D2 DGGA']  
X:1
L:1/8
Q:1/4=104
M:4/4
K:Gmin
"^Moderato" D2 | DGGA B2 AB | c>BAG ^F2 D2 | DGGA B>ABc | d6 f2 | d>BBd f2 ed | c>BAB c2 Bc | 
 d>cB>G d2 D2 | G2 A2 B2 Bc | d>c B<G d2 D2 | G6 ||  