Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/16
M:3/4
K:Eb
['G2E2 F2_d2 BAFE F2EF E2E2']  
X:1
L:1/16
M:3/4
K:Eb
 (BA) G2E2 | F2_d2 BAFE F2EF | E2E2 E2 (gf) e2(BA) | (B2>c2) d2(ef) g2(fe) | e2e2 e4 (EFGA) | 
 (B2>c2) d2ef g2(fe) | d2>e2 dBA2 G2E2 | F2_d2 BAFE F2EF | E2E2 E2 :|  