Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:6/8
K:D
['DFA dcB B2 A', 'afd edc']  
X:1
L:1/8
M:6/8
K:D
|: A | DF/G/A DFA | dcB B2 A | DFA DFA | GFG E2 F | DFA DFA | dcB B2 A | Ace Ac/d/e | gfe d2 :: g | 
 f2 f def | gfg ee/f/g | afd edc | B2 c A2 e | faf dd/e/f | gfg e2 g | afd edc | A2 c d2 :|  