Create a composition by utilizing the given alphabet-based musical pattern and the provided melodic theme.
X:1
L:1/8
M:3/4
K:D
['F2 z2 AG F>E E2 DF AdddcB']  
X:1
L:1/8
M:3/4
K:D
 DF | A2 B2 A>G | GF F2 E>F | GB B2 A>G | F2 z2 AG | F>E E2 DF | AdddcB | AGBAGA | F2 z2 AG | 
 F>E E2 DF | AdddcB | AGBAGA | F2 z2 |]  