Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
M:6/8
K:A
['ecA BAF AFE EFA B/c/dc B^AB', 'c2 e']  
X:1
L:1/8
M:6/8
K:A
|: a/f/ | ecA BAF | AFE EFA | B/c/dc B^AB | cB^A B2 =a/f/ | ecA BAF | AFE EFA | B/c/dc B^AB | 
 cAG A2 :: B | cee d2 f | cee ecA | Ac/d/e f/g/af | ecA B^AB | c2 e dff | c2 e ecA | B/c/dc B^AB | 
 cAG A2 :|  