Construct a musical piece by amalgamating the designated alphabetical representation and the supplied musical theme.
X:1
L:1/8
M:4/4
K:G
['eBBA G2 GA', '', 'edef gfaf']  
X:1
L:1/8
M:4/4
K:G
 B/c/d | eBBA G2 GA | B2 Ac BE E/D/E | G2 GE DEGA | BAdB A2 A/B/d | eBBA G2 GA | 
 B/c/d Ac BE E/D/E | GAGE DEGA | dBAc BG :| G |: d | e2 ef edBd | g2 gf edBc | d2 df edef | 
 gfaf g2 fg | edef edBd | gfgf edBc | dcdf edef | gfaf g3 :|  