Craft musical compositions with attention to the given structure and cohesion with the proposed musical idea.
X:1
L:1/8
Q:1/4=85
M:2/4
K:Bb
['B,>B, B,B,', 'z2 B,>B, B,B,'  
X:1
L:1/8
Q:1/4=85
M:2/4
K:Bb
 B,>B, B,B, | B,F, F,2 | A,>A, A,A, | B,2 z2 | B,>B, B,B, | B,B,B,B, | B,>B, B,B, | A,2 z2 || 
 B,>B, B,B, | B,2 B,2 | A,>A, A,A, | B,2 z2 | B,>B, B,B, | B,B, B,2 | B,>C B,A, | B,4 |]  