Compose a musical piece in accordance with the outlined theme and structure.
X:1
L:1/8
M:6/8
K:G
['D GFGd^cd _B2 A G2 G AGAd^cd']  
X:1
L:1/8
M:6/8
K:G
 D | GFGd^cd | _B2 A G2 G | AGAd^cd | A3 z2 A | _BAGGAB | c3 d2 c | _BAGF/E/Dd | _BcBAGF | G3 z2 |]  