Compose a musical piece using the designated musical pattern's alphabetic representation and the assigned melodic theme.
X:1
L:1/8
M:2/2
K:D
['de/f/ gfed d2 de/f/ ABAG F2 FG', 'd2 A2 d2 de f2 f2 gfed']  
X:1
L:1/8
M:2/2
K:D
 de/f/ | gfed d2 de/f/ | ABAG F2 FG | A2 AA B2 AF | A2 Bd d2 :| A2 | d2 de f2 f2 | gfed e2 eg | 
 f2 ed d9/4c/ A/ | BdcB A2- Af/g/ | afed d2 de/f/ | ABAG F2 FG | A2 AA B2 AF | A2 Bd d2 ||  