Craft musical compositions with attention to the given structure and cohesion with the proposed musical idea.
X:1
L:1/8
Q:1/2=90
M:4/4
K:Amin
['e2 a z A4 e z ed', 'c2 d z d2 B2 G2 |1,3'  
X:1
L:1/8
Q:1/2=90
M:4/4
K:Amin
|: e2 a z A4 | e z ed B2 c2 | d z d2 B2 G2 |1,3 ABcd e4 :|2,4 ABcB A4 :: A4 ABcB | A z A2 B2 c2 | 
 d z d2 B2 G2 |1,3 ABcd e4 :|2,4 ABcB A4 :|  