Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
Q:1/2=65
M:2/2
K:G
['Bdd(c/B/) cee(d/c/)', 'G2 Bd-dg f(e/f/) g2 Bd-dg aA A2']  
X:1
L:1/8
Q:1/2=65
M:2/2
K:G
|: Bdd(c/B/) cee(d/c/) | Bdd(c/B/) cA A2 | Bdd(c/B/) cee(d/c/) | BdAc BG G2 :: Bd-dg f(e/f/) g2 | 
 Bd-dg aA A2 | Bddg fe/f/ gc | BdAc BG G2 :|  