Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
Q:1/8=232
M:4/4
K:A
['eA cA']  
X:1
L:1/8
Q:1/8=232
M:4/4
K:A
|: f | eA cA BF Ff | eA cA B2 B/c/d | eA cA BF FG | AF EC A,3 f | eA cA BF Ff | eA cA B2 B/c/d | 
 eA cA BF FG | AF EC A,3 E | A2 AF BE EF | A2 Ac B3 c | A2 AF BE EG | AF EC A,2 A,c | A2 AF BE EF | 
 A/A/A cd e3 g | fd df ec ce | dc BG A3 :|  