Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/16
Q:1/8=180
M:2/4
K:D
['d2fd c2ec d2fd A4 BGBd cdec', 'a4 a4 a6 ef gfed cdec']  
X:1
L:1/16
Q:1/8=180
M:2/4
K:D
|: d2fd c2ec | d2fd A4 | BGBd cdec | defg abaf | d2fd c2ec | d2fd A4 | BGBd cdec | d2f2d2 z2 :: 
 a4 a4 | a6 ef | gfed cdec | defd A4 | a4 a4 | a6 ef | gfed cdec | d2f2d2 z2 :|  