Develop a musical composition in line with the given structure and theme.
X:1
L:1/8
M:3/4
K:Emin
['b>g a2 c>B', '(3gfe d>f'  
X:1
L:1/8
M:3/4
K:Emin
|: (3efg | b2 b2 (3c'ba | g2 e2 b>g | a2 c>B c>d | f>e B2 (3efg | b2 b>c b>a | g>e B>e b>g | 
 a2 c>B (3Bcd | e2 E2 :: (3gfe | d>f a2 (3def | e>g B2 (3gfe | d>f B2 (3agf | e>B G2 e>B | 
 d>f a>f d>f | e>G B2 f>e |1 d>B a>B f>B | e2 E2 :|2 ^d>B ^a>b (3=agf | e2 E2 :|  