Create a musical composition employing the given alphabetic structure and melodic theme.
X:1
L:1/8
M:2/4
K:A
['eA cA e/f/e/d/ cA', 'Bc/d/ ef/g/ ag']  
X:1
L:1/8
M:2/4
K:A
 eA cA | e/f/e/d/ cA | eA cB/c/ | dB B2 | eA cA | e/f/e/d/ cA | Bc/d/ e/f/e/d/ | cA A2 :| 
 Bc/d/ ef/g/ | ag ed | Bc/d/ ef/g/ | ag e2 | Bc/d/ ef/g/ | ag ed | Bc/d/ e/f/e/d/ | cA A2 :|  