Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:2/2
K:Amin
['AB{d}cA e2 dB', 'a2 g e2 ed']  
X:1
L:1/8
M:2/2
K:Amin
 AB{d}cA e2 dB | (3.G.G.G BG dGBG | AB{d}cA e2 dB | cABG EA A2 :| !fermata!A a2 g e2 ed | 
 cde^f g2 fe | A a2 g e2 ed | cABG EA A2 | A a2 g e2 ed | cde^f g2 fe | ag^fe gfed | ede^f g2 ea |]  