Compose a piece of music that follows both the given musical theme and the letter-based structure provided.
X:1
L:1/8
Q:1/8=100
M:3/4
K:A
['A2- AcBA', 'A4 c>d e2- efed c2- cedB A2-']  
X:1
L:1/8
Q:1/8=100
M:3/4
K:A
"^moderate" E | A2- AcBA | G2- GBcd | e2 fdBA | G4 (3EFG | A2- AcBA | G3 A B/c/d | e2 fdBG | A4 || 
 c>d | e2- efed | c2- cedB | A2- ABAG | E4 (3EFG | A2- AcBA | G3 A B/c/d | e2 fdBG | A6 |]  