Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:2/4
K:D
['A2 F2 D2 d2 c/d/c/B/ AB/c/', 'e2 cA e/d/c/d/ Be', 'A2 A (def)A (def)A (efg)c (def)A defA'  
X:1
L:1/8
M:2/4
K:D
 d/c/ | A2 F2 | D2 d2 | c/d/c/B/ AB/c/ | def F/G/ | A2 F2 | D2 d2 | c/d/c/B/ AB/c/ | d2 d |] 
 !fermata!c/d/ | e2 cA | e/d/c/d/ Be | cdBc | ABc c/d/ | e2 cA | e/d/c/d/ Be | cdBc | 
 A2"^D.C." A2 |] A | (def)A | (def)A | (efg)c | (def)A | defA | defA | efgc | d2-"^D.C." d |]  