Build a musical number by combining the given character designation and the presented melodic structure.
X:1
L:1/8
M:4/4
K:Gmix
['g2 dg']  
X:1
L:1/8
M:4/4
K:Gmix
 G2 dG Acdc | AFcF dFcF | AGBd (3gbg dc | BdcA dAcA | G2 dG Acdc | AF F2 dFcF | AGBd (3gbg dc | 
 BdcA BG G2 | g2 dg ga{b}ag | fAde f3 a | g2 dg g_bag | fdcA =BGBd | g2 dg g_bag | fAde f3 g | 
 a_bag fa{b}ag | ^fdcA dAcA |]  