Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/4
M:3/4
K:G
['d B', 'G2 G e3/2 ^d/ e/f/ g f']  
X:1
L:1/4
M:3/4
K:G
 uD | G{/A} (G/F/) G | B{/c} B/A/ B/c/ | d B g | d B G | A{/B} (A/^G/) A/B/ | c A F | G B d | G2 :: 
 G | e3/2 ^d/ e/f/ | g f e | (3(e/f/e/) d ^c | d2 B | =c{/d} (c/B/) c/d/ | e d c | (B/A/) B g | 
 d B G | A{/B} (A/^G/) A/B/ | c A F | (G B) d | G2 :|  