Create musical pieces that follow the designated structure and incorporate the provided musical motif.
X:1
L:1/4
Q:1/4=120
M:6/4
K:Bphr
['B2 B']  
X:1
L:1/4
Q:1/4=120
M:6/4
K:Bphr
 B | B2 B e2 e | d c2 B2 B | B2 B A2 A | d2 c B2 B | c2 d e2 e | d c2 B2 B | A2 A (B3/2 B/) c | 
 d2 c B2 B | B2 B A2 A | B2 B G2 G | B2 B A2 A | d2 c B2 B/B/ | B2 B A2 A | B2 B G2 G | d2 d g2 d | 
 d3/2 e/ d B2 |]  