Craft a composition that integrates the assigned alphabet-related musical pattern and the provided melodic theme.
X:1
L:1/8
M:4/4
K:D
['Dd/c/ dd fd f2']  
X:1
L:1/8
M:4/4
K:D
 Dd/c/ dd fd f2 | af a/g/f/e/ d/c/d/e/ dd | Dd/c/ dd fd f2 | agfe d2 d2 | gg ff gg f2 | 
 Dd/c/ dd fd f2 | af a/g/f/e/ d2 D2 | G>ABB Bd d2 | Bd e/d/=c/B/ A/G/A/B/ AA | G>ABB Bd d2 | 
 eB e/d/=c/B/ B2 A2 | A>B=cc BdgB | A>B =cc Bd/e/ d/c/B/A/ | G>ABB BdgB | dB d/=c/B/A/ G4 ||  