Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:6/8
K:Gmin
['G GAB', 'FGA B2 c2 _d2 dcd e2 f2']  
X:1
L:1/8
M:6/8
K:Gmin
|:"Gm" ded cdB |"Cm" cAB"Dm" GAF |"Gm" D2 G GAB |"F" AGA FGA |"Eb" B3 BcB |"F" A2 F FGA | 
"Eb" BAG"F" AGF |"Dm" D=EF"Gm" G3 ::"Cm" E2 G GAB | E2 G GAB |"Gm" D2 G GAB | D2 G GAB | 
"Cm" E2 G GAB |"Cm" E2 G GAB |1"Dm" ded cdB | cAB GAF :|2"Gm" =E2 G GAB | =E2 G GAB || 
"Cm7" e2 d2 cB |"F7" A3 ABc |"Bb7" d2 c2 BA |"Eb7" G3 GAB |"Am7b5" c2 B2 AG |"D" ^F3 FGA | 
"Gm" B2 c2 _d2 | d3"G7" dcd |"Cm7" e2 f2 e2 |"F7" A3 ABc |"Bb7" d2 e2 d2 |"Eb7" G3 GAB | 
"Am7b5" c2 B2 AG |"D7" ^F3 FGA |"Gm" BAG"F" AGF |"Dm" D=EF"Gm" G3 ||  