Build a musical number by combining the given character designation and the presented melodic structure.
X:1
L:1/8
Q:1/4=62
M:4/4
K:Bb
['z2 d4 e4 f2 B2']  
X:1
L:1/8
Q:1/4=62
M:4/4
K:Bb
"^Lento" B4 c4 | d2 cd edcB | f2 fg fedc | B4 c4 | d2 cd edcB | B2 AG ABcd | F3 F AGF=E | F6 z2 | 
 c4 d4 | e2 ed cdee | dcde dcBA | G4 A4 | B2 BA GABc | B3 c defe | B3 B d>c B>A | B6 z2 | d4 e4 | 
 f2 B2 BcBA | G6 z2 | d4 e4 | f2 B2 dcBA | B3 B cdec | B4 f2 f>f | f6 z2 | d4 e4 | f2 B2 BcBA | 
 G4 F2 z2 | d4 e4 | f2 B2 dcBA | B3 c defd | B3 e d>c B>A | B6 z2 |]  