Develop musical compositions by respecting the prescribed structure and combining the presented musical concept.
X:1
L:1/8
M:2/4
K:G
['G/A/B/c/ dd BG e2 ABcc Ag f2']  
X:1
L:1/8
M:2/4
K:G
 G/A/B/c/ dd | BG e2 | ABcc | Ag f2 | defg | a2 z2 | gdgd | ecdB | G4 |]  