Using the provided alphabet sequence and motif, develop a unique musical composition.
X:1
L:1/8
M:4/4
K:Gmin
['G>A A>G FA B>A GF']  
X:1
L:1/8
M:4/4
K:Gmin
|: D |"Gm" G>G Bc dG- GG |"Ab" _AB ce"Gm" d3 d |"Gb" _d>c B_G"Gm" =d=G- GG |"F" AB ce"D" d>c BA | 
"Gm" G>A BG"F" A>G FA |"Gm" B>A GF G3 :: d |"G7" g_a gd"Cm" e3 c |"F" fg fc"Bb" d3 d | 
"Ab" c>d ec"Gm" dG-GG |"A" A=B ^cA"D" d>=c _BA |"Gm" G>A BG"F" A>G FA |"Gm" B>A GF G3 :|  