Develop a musical composition by integrating the alphabetically represented musical pattern and the supplied melodic theme.
X:1
L:1/8
Q:1/8=333
M:2/2
K:C
['e/f/ gcac gcac g<ce<c d2 de/f/ gcac', 'c2 GE']  
X:1
L:1/8
Q:1/8=333
M:2/2
K:C
 e/f/ | gcac gcac | g<ce<c d2 de/f/ | gcac gcec | BGAB c2 c :| | G | c2 GE CGEc | GcEc d2 de | 
 c2 GE cagf | e<cdB c2 cG | c2 GE cGEc | GcEc d2 de | cedf egfa | e<cdB c2 c |]  