Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:2/4
K:G
['gf ed Bd e2 dB', 'e2 dB'  
X:1
L:1/8
M:2/4
K:G
|: gf ed | Bd e2 | dB GA | BA A2 | gf ed | Bd e2 | dB AB |1 G2 G2 :|2 G2 GB/c/ |: dB GA | Bd e2 | 
 dB GA | BA AB/c/ | dB GA | Bd e2 | dB AB |1 G2 GB/c/ :|2 G2 G2 ||  