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 d2', 'f3 gfg a3 f2 g a2 f']  
X:1
L:1/8
M:6/8
K:D
|: A | dfA d2 A | dfA d2 f | a2 f fed | e3 ecA | dfA d2 A | dfA d2 f | a2 f efe | d3 d2 :: g | 
 f3 gfg | a3 f2 g | a2 f fed | e3 ecA | f3 gfg | a3 f2 g | a2 f efe | d3 d2 :|  