Develop musical compositions in line with the specified format and incorporating the provided musical theme.
X:1
L:1/8
M:4/4
K:G
['de f2 ef gfef d2 dc AGFA', 'D2 GA B2 AB c2 Bc A2'  
X:1
L:1/8
M:4/4
K:G
|: de | f2 ef gfef | d2 dc AGFA | cBcd ecdB | A2 AB A2 de | f2 ef gfef | d2 dc AGFA | cBcd dcAG | 
 E2 D2 D2 :: GA | B2 AB c2 Bc | A2 AG FGAB | cBcd ecdB | A2 AB A2 de | f2 ef gfef | d2 dc AGFA | 
 cBcd dcAG | E2 D2 D2 :|  