Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:6/8
K:D
['ABA F2 A dcd f2 a e2', '(3e/f/g/ aba'  
X:1
L:1/8
M:6/8
K:D
 A | ABA F2 A | dcd f2 a | e2 f gfe | cde dcB | ABA F2 A | dcd f2 a | e2 f gec | d3 d2 :: 
 (3e/f/g/ | aba faf | dcB A2 G | FDF AGF | E3 E2 e | gag efe | dcB A2 (3e/f/g/ | aba gfe | d3 d2 :|  