Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
Q:1/4=160
M:2/4
K:G
['', 'd ef'  
X:1
L:1/8
Q:1/4=160
M:2/4
K:G
 A |: BA Bc | d3 d | ef ge | d2 z d | ef gg | f2 ee | de dc |1 B2 z A :|2 B2 z ||  