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
['Bdgf g2', 'ga b2 bg a2 af gfge d2']  
X:1
L:1/8
M:4/4
K:G
 dc | Bdgf g2 dc | Bdgf g2 d^c | dfag fed^c | dfag fed=c | Bdgf g2 dc | Bdgf g2 dd | efge fgaf | 
 g2 b2 g2 || ga | b2 bg a2 af | gfge d2 dB | c2 ec B2 dB | AGAB A2 ga | b2 bg a2 af | gfge d2 d2 | 
 efge fgaf | g2 b2 g2 ||  