Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
Q:3/8=80
M:6/8
K:F
['D A,DD DCD/D/ FFF G2 (F/G/) A>Ad']  
X:1
L:1/8
Q:3/8=80
M:6/8
K:F
 D | A,DD DCD/D/ | FFF G2 (F/G/) | A>Ad cAG | FGA G2 G/G/ | AAd cAc | GFD C2 C/C/ | DDD FAF | 
 GDC D2 ||  