Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:6/8
K:Emin
['', 'B3 E3 B3 def', 'e2 f']  
X:1
L:1/8
M:6/8
K:Emin
 A |: B3 E3 | B3 def | e3 edB | dBA AGA | B3 E3 | B3 def | edB A2 B |1 GFD E3 :|2 GFd e3 |: 
 g3 e2 f | g3 bge | g3 efg | fdf afd | g3 e2 f | g3 bag | fag fed |1 efd e2 f :|2 efd e2 A ||  