Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
Q:1/2=90
M:2/2
K:A
['GABd cAeA', 'CEAc BEdE'  
X:1
L:1/8
Q:1/2=90
M:2/2
K:A
 f | eAeA GABd | cAeA fAaA | eAcA GABd | cAeA A/A/A A2 :: CEAc BEdE | cEeE BGFE | CEAc BEdE | 
 caec A/A/A A2 :|  