Create a musical composition adhering to the provided thematic and alphabetical guidelines.
X:1
L:1/4
M:3/4
K:Gmin
['g d b a3/2 a/ b g', 'f f']  
X:1
L:1/4
M:3/4
K:Gmin
|: g d b | a3/2 a/ b | g g3/2 a/ | ^f3/2 =e/ d | e c f | d3/2 =e/ ^f | g a ^f | g3 :: d d =e | 
 f f f | d3/2 d/ e | c2 f | f g a | b f d | e c3/2 B/ | B2 B | f f ^f | g g a | b b a | g g f | 
 e e d | c d B | c A3/2 G/ | !fermata!G3 |]  