Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:2/2
K:A
['', 'A2 cB ABcA'  
X:1
L:1/8
M:2/2
K:A
"^A" E2 |: A2 cB ABcA | d2 f2 e4 | A2 cB ABcA |1 B2 G2 A2 E2 :|2 B2 G2 A4 |:"^B" c2 e2 a3 a | 
 g2 f2 B4 | B2 Bc efed |1 cA B2 c4 :|2[M:5/4] cA B2 A6 |]  