Compose a piece using the specified musical pattern based on the alphabet notation and provided melodic motif.
X:1
L:1/8
M:4/4
K:Bb
['z vB2-', '(3(BcB) F>B d>FB>d (3(cdc) G>c e>dc>B']  
X:1
L:1/8
M:4/4
K:Bb
 uF2 | vB z vB2- B>vAuc>uB | vd z vB2- B>vAuc>uB | A>Bc>d e>dc>B | c>BA>G F>ED>E | 
 vF z vB2- B>vAuc>uB | vd z vB2- B>vAuB>uc | d4- d>ec>d | B>cA>B G2 :: F2 | (3(BcB) F>B d>FB>d | 
 (3(cdc) G>c e>dc>B | (3(ABA) E>B (3(ABA) E>A | G>F=E>F D>FG>A | (3(BcB) F>B d>FB>d | 
 (3(cdc) G>c e>dc>B | A>g f2 F>ed>c | B2 [dF]2 [BD]2 :|  