Build a musical number by combining the given character designation and the presented melodic structure.
X:1
L:1/8
Q:1/4=120
M:4/4
K:Bb
['BdcB df f2 BdcB c/B/A/G/ F2 BdcB', 'bf d/e/f/d/']  
X:1
L:1/8
Q:1/4=120
M:4/4
K:Bb
 BdcB | df f2 | BdcB | c/B/A/G/ F2 | BdcB | (3def f2 | g/a/b ag | ag f2 :: bf d/e/f/d/ | 
 Bf d/e/f/d/ | bf d/e/f/d/ | ec c2 | bf d/e/f/d/ | Bfdf | g>g a>a | b>B B2 :|  