Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
Q:1/8=160
M:6/8
K:Emin
['g dBB BAB', 'gfg aga bge']  
X:1
L:1/8
Q:1/8=160
M:6/8
K:Emin
 g | dBB BAB | dBB B2 g | dBB BAB | GEE E2 g | dBB BAB | dBB BAG | ABc BAB | GEE E2 :| d | 
 gfg aga | bge edB | gfg aga | bge e-e/f/g/a/ | bag agf | gef g2 e | dBB BAB | GEE E2 :|  