Compose a piece using the specified musical pattern based on the alphabet and the provided melodic theme.
X:1
L:1/8
M:4/4
K:Gmin
['GFDF E2', 'GABA G2 g^f g=fd^c cBGF GABd cA']  
X:1
L:1/8
M:4/4
K:Gmin
 GD D2 B2 AB | GFDF E2 FE | DGBD GBdg | fdec dBcA | B2 dB A2 cA | GBAF GFDF | E2 GE DGBd | 
 cAFA GABA :: G2 g^f g=fd^c | cBGF GABd | cA A2 FGAc | f=efd cAFA | GABG ^FAdF | FGAF =EGcE | 
 EFGE DGBd | cAFA GABA :|  