Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:2/4
K:A
['EA AB', 'e>f ed']  
X:1
L:1/8
M:2/4
K:A
|: EA AB | cd/c/ BA | GB EF | GE E2 | EA AB | c2 BA | Be ed | cA A2 :: e>f ed | cA AB/c/ | d2 dB | 
 GB E2 | e>f ed | c<e AB/c/ | dB GE | A2 A2 :|  