Craft a piece of music that integrates both the suggested theme and letter-based structure.
X:1
L:1/8
Q:3/8=110
M:6/8
K:A
['eAA cAA', 'agf fcc dcB A2']  
X:1
L:1/8
Q:3/8=110
M:6/8
K:A
 f | eAA cAA | eAA A2 f | eAA cAA | GBB B2 c/d/ | eAA cAA | eAA !fermata!f2 (e/d/) | cde efg | 
 aAA A2 :: !fermata!g | agf fcc | dcB A2 (A/G/) | FGA ABc | dfe !fermata!e2 f/g/ | agf fcc | 
 dcB A2 A/G/ | FGA ABc | dfe !fermata!e2"^Da capo" f |]  