Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:9/8
K:D
['d2 d', 'd2 g fdf']  
X:1
L:1/8
M:9/8
K:D
 d2 d dAG FED | d2 d d2 A FGE | ABc dcB AGF | c2 c ECE G2 E :: g3 fdf ecA | d2 g fdf gfe | 
 d2 g fdf ege | c2 c ECE G2 E :|  