Write musical works that keep the predetermined structure and weave in the given motif
X:1
L:1/8
M:4/4
K:C
['BB GG', 'B2 BB/B/ BA Bc d2 BB BA', 'EG B2 BB'  
X:1
L:1/8
M:4/4
K:C
 BB GG AA BB/B/ | BB GG AA B2 :| BB/B/ BA Bc d2 | BB BA GF E2 |: EG B2 BB BB | Bc BA GF GE | 
 EG B2 BB B2 | Bc BA GF E2 :|  