Build a musical number by combining the given character designation and the presented melodic structure.
X:1
L:1/8
M:4/4
K:G
['', 'B2 AG', 'edef gfed']  
X:1
L:1/8
M:4/4
K:G
 g |: B2 AG A2 D2 | B2 AG Bd g2 | B2 AG A2 D2 | EGFA G2 Gd :| edef gfed | BABd g2 G2 | edef gfed | 
 BABd e3 d | edef gfed | egfa gfga | bagf gfed | BABd edef ||  