Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/8
M:4/4
K:D
['D2 (3FGA', 'A>Fd>B (3ABA (3FED E>DB,>D d>cd<B A>Bd<e f2']  
X:1
L:1/8
M:4/4
K:D
|: D>B, | A,>^G,A,>B, D2 (3FED | E>DF>D E>D (3B,CD | A,2 A,>B, D2 (3FGA |1 d>BA<F E2 :|2 
 d>BA<F D2 |: (3FGA | d2- d>B A>Fd>B | (3ABA (3FED E>DB,>D | d>cd<B A>Bd<e | f2 (3def (3efe (3def | 
 a>df>d e>dB>c | d>BA<F E2 (3B,CD | A,2- A,>B, D>EF<A | d>BA<F D2 ||  