Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/8
M:4/4
K:D
['AG (3DFA GE (3DDD (3ABc dfec (3ddd', 'CDEF GEAG (3DFA GE D2 (3ddd'  
X:1
L:1/8
M:4/4
K:D
 AG | (3DFA GE (3DDD (3ABc | dfec (3ddd (3DFG | AdcB AFGF | EFGF (3EEE AG | (3DFA GE (3DDD (3ABc | 
 dfec (3ddd (3DFG | AdcB AFGE | (3DED CE D2 :| (3DED | CDEF GEAG | (3DFA GE D2 (3ddd | cAef gece | 
 defg (3aag ae | CDEF GEAG | (3DFA GE D2 (3ddd | (3cBA (3GFE (3FED (3EDC | (3DED CE D2 :|  