Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:4/4
K:G
['', 'dc BG G2 GAGE DEGA B2 AG', 'BGdG eGdG BGdG edcB'  
X:1
L:1/8
M:4/4
K:G
 dc |: BG G2 GAGE | DEGA B2 AG | cA A2 ABAG | ABcd e2 dc | BG G2 GAGE | DEGA B2 AG | ABcd efge | 
 dcBA G2 dc :: BGdG eGdG | BGdG edcB | cAeA fAeA | cAeA fedc | BGdG eGdG | BGdG edcB | ABcd efge | 
 dcBA G2 :|  