Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
Q:1/8=120
M:4/4
K:D
['ABAF DEFG AFAB =c2 A^c', 'fg abag agec dcAF G2 FG ABAF']  
X:1
L:1/8
Q:1/8=120
M:4/4
K:D
 ABAF DEFG | AFAB =c2 A^c | dcde fdAF | DGGF G2 FG | ABAF DEFG | AFAB =c2 A^c | dcdefdAG |1 
 F2 D2 D2 FG :|2 F2 D2 D2 de |: f2 fd edcA | dggf g2 fg | abag agec | dcAF G2 FG | ABAF DEFG | 
 AGAB =c2 A^c | dcde fdAG | F2 D2 D4 :|  