Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:12/8
K:A
['e2 e ABc', 'Ace aga f/g/af']  
X:1
L:1/8
M:12/8
K:A
 ECE A,CE FEC ECE | e2 e ABc BAA F/G/AF | E2 E A,CE FEC EC/D/E | e2 e ABc BcB A2 F :: 
 efe Ace aga f/g/af | ece fec ecc Bcd | e2 A Ace aga f/g/af | e2 c BAB cAG A3 :|  