Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:2/2
K:G
["dd g2 bg a2 fd g2 bd'", 'b2 ag']  
X:1
L:1/8
M:2/2
K:G
 dd | g2 bg a2 fd | g2 bd' c'2 ac' | bd'gb ee'c'a | gfaf d2 dd | g2 bg a2 fd | g2 bd' c'2 ac' | 
 bd'gb ee'c'a | gfaf g2 || b2 ag | bd' d'b | c'abg afed | ee'dd' cc'Bb | ac'ea gfed | 
 b2 ag bd'd'b | c'abg afed | egce AcFA | GgdB G2 ||  