Build a musical work using the provided motif and following the indicated form.
X:1
L:1/16
Q:1/8=120
M:2/4
K:Bb
['A2 z2']  
X:1
L:1/16
Q:1/8=120
M:2/4
K:Bb
 z2 dddd | dddd c2>B2 | A2 z2 cccB | Accd c2>B2 | B2 z2 BBBG | A2 z2 DDDD | D2 z2 cdfd | 
 c2 z2 AAAA | A2 z2 cccB | ABcd c2c2 | B4 z4 ||  