Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:4/4
K:D
['B3 c', 'dAFA dAFA'  
X:1
L:1/8
M:4/4
K:D
 B3 c dcde | f3 g fedc | B3 c dcdB | G2 G/G/G G2 F2 | B3 c dcde | f3 g fede | f2 e2 d2 c2 |1 
 Bbfd B3 :|2 B4 (c3 || d)AFA dAFA | eAfA eABc | dAFA dAFA | dcdf edBc | dAFA dAFA | gAfA eABc | 
 dcdf edce | d/e/d ce d3 :|  