Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
['F3 E', 'fddc dfaf'  
X:1
L:1/8
Q:1/8=180
M:4/4
K:D
 F3 E DEFD | EA, A,2 EA, A,2 | F3 E DEFA | (3Bcd ec dcBA | F3 E DEFD | EA, A,2 EA, A,2 | 
 F3 E DEFA | (3Bcd ec d2 || Ad | fddc dfaf | edcd efge | fddc dfaf | gbeg fddA | fddc dfaf | 
 edcd efge | dfaf gbag | (3fga ec dcBA |]  