Write musical works that keep the predetermined structure and weave in the given motif
X:1
L:1/8
Q:1/2=90
M:2/4
K:Bb
['B2 (3(dcB)', 'B2 (3(dcB)'  
X:1
L:1/8
Q:1/2=90
M:2/4
K:Bb
|: B2 (3(dcB) | gedc | B2 (3(dcB) | AFAF | B2 (3(dcB) | gedc | (3(def) (3(dcB) | c2 B2 :: 
 B2 (3(dcB) | bBbB | B2 (3(dcB) | AFAF | B2 (3(dcB) | gedc | (3(def) (3(dcB) | c2 B2 :|  