Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
Q:1/2=60
M:2/2
K:Amin
['cB A3 B AGEG AGAB cBcd e^fge', 'eg agab ageg agab'  
X:1
L:1/8
Q:1/2=60
M:2/2
K:Amin
 cB | A3 B AGEG | AGAB cBcd | e^fge dedc | B2 G2 G2 cB | A3 B AGEG | AGAB cBcd | e^fge dedB | 
 c2 A2 A2 :: eg | agab ageg | agab agef | gage dedc | B2 G2 G2 eg | agab ageg | agab aged | 
 cBcd edcB | c2 A2 A2 eg | agab ageg | agab agef | gage dedc | B2 G2 G2 cB | AGAB cBcd | 
 efed cBAG | (AB/c/) (Bc/d/) (cd/e/) dB | c2 A2 A2"^NB1" :|  