Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/4
M:3/4
K:G
['', 'd2 d/e/', 'z d e']  
X:1
L:1/4
M:3/4
K:G
 z D E |: G3/2 A/ G | G E G | A3/2 B/ A | A B c | d2 d/e/ | d2 d/e/ | d c B | A3 |1 z D E :|2 
 z d e |: g3 | z e g | c3 | z B c | e3 | z d e | A3 | z D E | G3/2 A/ G | G E G | A3/2 B/ A | 
 A B c | d2 d/e/ | d2 d/e/ | d c B |1 A3 | z d e :|2 A3 ||  