Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:2/2
K:G
['B2 B2', 'd2 e2'  
X:1
L:1/8
M:2/2
K:G
 B2 B2 BAGA | BABc dedc | B2 B2 BAGB |1 d2 cA AGGA :|2 d2 cA AG G2 || e2 a2 g3 e | d2 Bc d2 d2 | 
 e2 a2 g3 e | d2 cA AG G2 | e2 a2 g2 e2 | d2 e2 f2 g2 | abaf g2 ge | d2 cA AGGA ||  