Develop a musical composition using the outlined alphabetical depiction of the structure and the provided theme.
X:1
L:1/4
M:4/4
K:Gmin
['D G B2 G ^F']  
X:1
L:1/4
M:4/4
K:Gmin
"^A" D |"Gm" G B2 G |"D7" ^F d2 D |"Gm" G B2 G |"D7" ^F A2 D |"Gm" G B2 G |"D" ^F g-"Cm" g c | 
"^Gm/d" B2"D7" A2 |"Gm" G3 :|"^B" d |"Gm" d g2 d |"Gm" g b2 d |"F" c f2 c |"F" f a2 c | 
"Eb" B e2 d/c/ |"Gm" d g-"Cm" g c |"^Gm/d" B2"D7" A2 |"Gm" G3 :|  