Develop a musical composition that aligns with the given structural outline and thematic content.
X:1
L:1/4
M:4/4
K:Gmin
['(g f B2) (c d e/d/', 'B3) f b3/2 a/ g f g'  
X:1
L:1/4
M:4/4
K:Gmin
|: (f d2) (g | f B2) (c | d e/d/ c B | c/B/A/G/ F2) | (f B2) (g | f B2) (c | d e/d/ c3/2 B/ | 
 B3) :: f | b3/2 a/ g f | g d2 (=e | d g/ g3/2 ^f/ | g3) f | (f e2) (d | f d2) (c/B/ | 
 A G c3/2 B/ | B3) :|  