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
['ABc dAG FED', 'afd fec dAG FED']  
X:1
L:1/8
M:6/8
K:D
|: FDF ABc | dAG FED | G3 FGA | BGE AGE | F3 ABc | dAG FED | dfa gec | dAF D3 :: afd fec | 
 dAG FED | G3 FGA | BGE E2 b | afd fec | dAG FED | dfa gec | dAF D3 :|  