Build a musical number by combining the given character designation and the presented melodic structure.
X:1
L:1/8
M:2/4
K:D
['Ad dB AF GE GB BA', 'Ad fa ge']  
X:1
L:1/8
M:2/4
K:D
|: Ad dB | AF GE | GB BA | GE GF | Ad dB | AF GE | GB BA | D2 D2 :: Ad fa | ge e2 | Ac eg | 
 fd d/e/d/B/ | Ad fa | ge ed | ce ba | d2 dB :|  