Design a musical composition incorporating the alphabetic expression of the chosen structure and the provided melodic theme.
X:1
L:1/8
M:9/8
K:Ador
['A2 G Add', 'FDD a2 g fab afd afd dfa']  
X:1
L:1/8
M:9/8
K:Ador
|: A2 G Add Add | ABA AFA fAg | A2 G Add ded | cAG AAG FDD :: a2 g fab afd | afd dfa baf | 
 afa baf afd | cAG AAG FDD :|  